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matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 1
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 04:58 pm:   Edit Post Delete Post Print Post

i was wondering if anyone could explain why the 03 disco hse requires premium fuel..and what would happen if u didnt use premium fuel a few times.... thanks..matt, alexandria
 

Brian Goodner (Bluewater)
Member
Username: Bluewater

Post Number: 173
Registered: 03-2003
Posted on Saturday, June 21, 2003 - 05:01 pm:   Edit Post Delete Post Print Post

nothin would happen really, but it's just better for the engine...but it's not a must
 

matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 2
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 05:08 pm:   Edit Post Delete Post Print Post

really i thought it would perman. screw up some kind of timing device in the engine..im not a tech guru, so when i heard this it spooked me
 

John Moore (Jmoore)
Senior Member
Username: Jmoore

Post Number: 716
Registered: 10-2002
Posted on Saturday, June 21, 2003 - 05:20 pm:   Edit Post Delete Post Print Post

Lower octane gas can cause pinging. If pinging does happen, the computer will retart the timing to stop it. Retarted timing results in poor detonation and excess build up of carbon on the valves.

Pay the dime to quarter more and prolong the life of your engine. You own a nice Land Rover, don't be cheap or it will bite you in the long run.

Hey Brian, don't offer advice unless you know what your talking about.
 

Brian Goodner (Bluewater)
Member
Username: Bluewater

Post Number: 177
Registered: 03-2003
Posted on Saturday, June 21, 2003 - 05:32 pm:   Edit Post Delete Post Print Post

K Land Rover told me when i bought my rover that premium gas was suggested not mandatory...and i guess thats why when he went to fell up my tank for the first time he didn't use premium gas...obviously if there were gona be major side effects he wouldn't have done that seeing as how the rover was under warranty...all and all you should use premium gas and thats what we're both saying you are just saying it in a different maner
 

Greg French (Gregfrench)
Senior Member
Username: Gregfrench

Post Number: 460
Registered: 11-2002
Posted on Saturday, June 21, 2003 - 05:38 pm:   Edit Post Delete Post Print Post

I used 87 once in a pinch. I made sure to run gas treatment through it on the next fill up.

Once in a while is ok, but don't do it very often.
 

matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 3
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 07:26 pm:   Edit Post Delete Post Print Post

thanx for the tips i guess ill continue to pay the extra price..its just hard cause ya never know when someone will borrow it (and fill w/gas) or god forbid the wife fills up the tank (never happens)it just stinks cause we get such bad mileage but i knew that when i bought it..i just wanted to double check on the gas garde..thnx all
 

matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 4
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 07:29 pm:   Edit Post Delete Post Print Post

last question: do u think it best to use the 87 fillup on occasion over long distance trips or city trips....if teh answer is "no" to both thats fine, i just want to know something to tell the wife as to why im spending extra on gas for long trips...she'll never know during city driving
 

Zach Jaggers (Mountenn)
Senior Member
Username: Mountenn

Post Number: 269
Registered: 03-2003
Posted on Saturday, June 21, 2003 - 07:32 pm:   Edit Post Delete Post Print Post

Brian,
All rovers are suggested to use premium gas. This is suggested for a reason. Odds are the dealer that was with you was a cheap bastard and didn't want to pay the extra $.15/gal to fill your truck up.
 

Luis Constantin (Luisc)
New Member
Username: Luisc

Post Number: 35
Registered: 02-2003
Posted on Saturday, June 21, 2003 - 07:33 pm:   Edit Post Delete Post Print Post

Your Rover dealer is keeping his cost down. What I have never understood is why a vehicle that is designed to travel just about anywhere in the world require premium fuel when in some countries you get what you get, take it or leave it. Some Pemex stations in smaller Mexican towns don't have but one pump, usually 87 or less on octane. It is quite a pain to have to pack booster and fuel system cleaner to keep things running smooth. And the "check engine" light still comes on. So I pull over, open hood, and check engine. It was still there. Just a joke.
 

John Moore (Jmoore)
Senior Member
Username: Jmoore

Post Number: 717
Registered: 10-2002
Posted on Saturday, June 21, 2003 - 07:53 pm:   Edit Post Delete Post Print Post

The reason for the premium gas is due to the emission standards in the US. The engine in your Rover is based on an 60's Buick engine. To get it to meet todays emission standards, Rover had to tweek it, one of the trade offs is the use of higher octane. LR's in other countrys that don't have the same emission standards don't need the premium fuel, they are programs differently in the ECU. However, your Rover can use poorer fuel, thus the programing of the ECU to retard of the timing to adjust to the pinging. It's just long term use of low grad fuel in US programed engines that leads to carbon build up.

On a long haul, I will alternate between 89 and 93 octane.
 

John Moore (Jmoore)
Senior Member
Username: Jmoore

Post Number: 718
Registered: 10-2002
Posted on Saturday, June 21, 2003 - 07:56 pm:   Edit Post Delete Post Print Post

Also, Many Rovers build for use outside of the US are diesel. Wish we could get them here, that's one great engine design.
 

Phil (Discoanywhere)
New Member
Username: Discoanywhere

Post Number: 7
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 08:44 pm:   Edit Post Delete Post Print Post

Do you really think premium gas is all the same?? Premium differs from company to company, country to country..Some gas stations even have dirty old tanks while others have shiny and new?? The idea behind running better fuel in any engine is cleaner burning..less build up in your engine and less for the environment... Engines just run better with better gas.. IMHO
 

Aaron Richardet (Draaronr)
Member
Username: Draaronr

Post Number: 147
Registered: 09-2002
Posted on Saturday, June 21, 2003 - 08:53 pm:   Edit Post Delete Post Print Post

Just spend the dime more per gallon and quite your bitchin. If you can't afford an extra $2.50 per tank why the hell would you buy a vehicle that gets at best 15miles per gallon.
 

matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 5
Registered: 06-2003
Posted on Saturday, June 21, 2003 - 10:28 pm:   Edit Post Delete Post Print Post

hey aaron shut the F up it was just a question i wasnt bitching... i just wanted to make sure an occasional fillup of my truck by a friend or my wife wouldnt perm damage my hse.... take ur attitude somewhere else
 

Luis Constantin (Luisc)
New Member
Username: Luisc

Post Number: 36
Registered: 02-2003
Posted on Saturday, June 21, 2003 - 10:49 pm:   Edit Post Delete Post Print Post

Phil,
I do think premium differs from brand to brand. We just got a new BP Amoco here in Austin. I've used it in the bike traveling cross country and liked it. But, they had a market intro price that was unbeatable. I tried it in the Rover and she even idled smoother. And I'm a person that picks up on the most suttle differences in my vehicle. After the first week, the price went to the top. A .20 price difference over the what I could get it for at Sam's. What I'm wondering is about the quality of Sam's premium gas. I wished we had Sunoco down here.
 

Greg Garcia (Lsudisco)
New Member
Username: Lsudisco

Post Number: 2
Registered: 05-2003
Posted on Sunday, June 22, 2003 - 09:47 am:   Edit Post Delete Post Print Post

Quite an attitude you have there matt. Seems to me you should be a little on the polite side if you want someone to answer your questions about your Discovery in the future. I do love the way you managed to put HSE in there. Just so you know, the different trim packages that Land Rover offers doesn't make a damn to us here at Discoweb, it's all the same under the hood, so please, don't brag.
 

Norm Orschnorschki (Norm)
Member
Username: Norm

Post Number: 62
Registered: 02-2003
Posted on Sunday, June 22, 2003 - 10:43 am:   Edit Post Delete Post Print Post

At least with the D1s and RR Classics, the ones sold in Mexico had lower compression heads (8.13:1 or so) so they could use the low octane gas down there with no problem. The USA trucks use higher compression 9.35:1 heads.

Using low octane gas in 9.35 will cause predetonation, carbon buildup and possible overheating at the cylinder wall that could result in a slipped sleeve. I always carry a can or two of octane booster in case I get caught in the boonies with only low octane gas available.

---Norm
 

Aaron Richardet (Draaronr)
Member
Username: Draaronr

Post Number: 149
Registered: 09-2002
Posted on Sunday, June 22, 2003 - 08:25 pm:   Edit Post Delete Post Print Post

Damn the newbie is snapping back. Look don't take offense it is a simple statement. I wouldn't go to the Ford Focus website and ask them why my car won't run a 12second 1/4 mile. Suck it up, and take that attitude with it. I bet some of that hot air you're blowing off would power your HSE for a mile or two. Will one tank mess your car up, bottom line no. It probably won't run as well, just don't make it a habit. Peace out little man
 

Phillip Perkinson (Rover4x4)
Senior Member
Username: Rover4x4

Post Number: 294
Registered: 02-2003
Posted on Sunday, June 22, 2003 - 08:29 pm:   Edit Post Delete Post Print Post

I make sure to put the cheapest most sketchy gas I can find in my rover.
 

Daniel Covaciu (Danielcovaciu)
Senior Member
Username: Danielcovaciu

Post Number: 319
Registered: 10-2002
Posted on Monday, June 23, 2003 - 07:03 pm:   Edit Post Delete Post Print Post

Here Here Phillip, my DI has been getting the sketchy 87 octane stuff too. Never a problem. I wish I could get some of that cheap mexican gas, it might run even better.
Dan
 

Matt Helm (Matt_helm)
New Member
Username: Matt_helm

Post Number: 18
Registered: 11-2002
Posted on Monday, June 23, 2003 - 07:24 pm:   Edit Post Delete Post Print Post

Somewhat off topic but still on gas... How far can I push my 03 when that needle is covering the red hash on the gas gauge? Do I have about a gallon left? half gallon? I'd like to do the Kramer thing and just keep pushing it .. but.. ;)
 

Aaron Richardet (Draaronr)
Member
Username: Draaronr

Post Number: 154
Registered: 09-2002
Posted on Monday, June 23, 2003 - 08:34 pm:   Edit Post Delete Post Print Post

Rule of thumb is two gallons left when warning light comes on. You do the math.
 

Phillip Perkinson (Rover4x4)
Senior Member
Username: Rover4x4

Post Number: 300
Registered: 02-2003
Posted on Monday, June 23, 2003 - 08:56 pm:   Edit Post Delete Post Print Post

just kidding about the schwag gas. nothing but BP 93 octane in my heep of Land Rover. THere is a station that has a pump labeled "racing fuel" the handle on the pump is red. what yall think about putting some of this in the truck to "clean" things out a little bit maybe just mix it in with about a half tank of premium? you think she would like it? I got the 3.9
 

Nate Jedinak (Ducati)
New Member
Username: Ducati

Post Number: 24
Registered: 12-2002
Posted on Monday, June 23, 2003 - 09:02 pm:   Edit Post Delete Post Print Post

Racing fuel has no fuel cleaner additives (if it's real racing fuel), it won't clean diddly. And it won't make it run better, to boot.

Try some BG44K fuel additive/cleaner. My old mechanic used to recommend changing the fuel filter, running a tank of BG44K laced fuel, and changing the fuel filter again. I was a believer after trying it once, you should have seen the sh|t that came out of my filter..

 

Phillip Perkinson (Rover4x4)
Senior Member
Username: Rover4x4

Post Number: 301
Registered: 02-2003
Posted on Monday, June 23, 2003 - 09:04 pm:   Edit Post Delete Post Print Post

thanks for the info. its legit racing fuel I have seen guys pumping it into thier drag bikes souped up Hayabusa's most recently and some other race/drag cars
 

Alyssa Brown (Alyssa)
Member
Username: Alyssa

Post Number: 193
Registered: 01-2003
Posted on Monday, June 23, 2003 - 09:14 pm:   Edit Post Delete Post Print Post

I have a tech who puts 94 octane in his DII, and he swears he gets MUCH better gas mileage than when he was using the 93.
As far as premium, PLEASE don't skimp and not use it.
 

Phillip Perkinson (Rover4x4)
Senior Member
Username: Rover4x4

Post Number: 303
Registered: 02-2003
Posted on Monday, June 23, 2003 - 09:35 pm:   Edit Post Delete Post Print Post

so would 95+ octane be even better?
 

JPinson (Jeffro0502)
Member
Username: Jeffro0502

Post Number: 64
Registered: 02-2003
Posted on Monday, June 23, 2003 - 10:07 pm:   Edit Post Delete Post Print Post

How about AV gas @ 2.20 a gallon??? Or better yet just straight JP4
 

Phillip Perkinson (Rover4x4)
Senior Member
Username: Rover4x4

Post Number: 305
Registered: 02-2003
Posted on Monday, June 23, 2003 - 10:19 pm:   Edit Post Delete Post Print Post

these are land Rovers not rocket ships
 

JPinson (Jeffro0502)
Member
Username: Jeffro0502

Post Number: 65
Registered: 02-2003
Posted on Monday, June 23, 2003 - 10:23 pm:   Edit Post Delete Post Print Post

God I hope nobody ever gets one of these confused with a rocket?....Speed bump maybe?
 

John Lombos (Rover4us)
New Member
Username: Rover4us

Post Number: 35
Registered: 02-2003
Posted on Tuesday, June 24, 2003 - 09:39 am:   Edit Post Delete Post Print Post

Has anyone really experienced smoother idle with different brand Premium? If so, I need to try other stations. I use BP/Amoco (as little as possible 'cause its the highest of them all),Chevron, Shell and don't know if you guys have these-Quick Trip. All 93 octane and I haven't known any to really smooth out idle. Any suggestions? (btw Disco is current on tune ups).
BG44K is good stuff!
 

Terry Christmas (Cornfed3)
New Member
Username: Cornfed3

Post Number: 4
Registered: 06-2003
Posted on Tuesday, June 24, 2003 - 10:35 am:   Edit Post Delete Post Print Post

I wonder how different the refinig process is on one brand of gas as opposed to the others. I think the corporate machine would have us to believe they are different to keep the prices jacked-up.

And yes, I do think the gov't and OPEC are bed buddies.
 

Nate Jedinak (Ducati)
New Member
Username: Ducati

Post Number: 25
Registered: 12-2002
Posted on Tuesday, June 24, 2003 - 10:37 am:   Edit Post Delete Post Print Post

BG44K rocks.

I get the best mileage not dependent upon octane, but station/brand (then again, I use nothing lower than 91, as that's what LR says it needs). My Disco likes Mobil best, and consistently gets .5-1.5mpg better (depending upon season) than Shell, Sunoco, BP, or Amoco. 1mpg doesn't sound like a lot, but if you're getting 12mpg it is significant over the course of a few thousand miles :-) I also go to a station with fast premium turnover for the freshest fuel.

If the motor isn't knocking you don't need higher octane, plain and simple. In my experience, one of the biggest factors in getting smooth running/good mileage is finding a station with high turnover; this is espeically true with premium fuel, as not as many people need/use it, especially when the economy is down. And stay away from the station when you see a tanker filling it up, as that stirs up all the sediment in the holding tanks.

Here's a good article on octane:
http://www.caranddriver.com/article.asp?section_id=4&article_id=3604&page_number =1
 

June H. Han (Junehhan)
New Member
Username: Junehhan

Post Number: 16
Registered: 04-2003
Posted on Tuesday, June 24, 2003 - 08:01 pm:   Edit Post Delete Post Print Post

The owners manual states that premium fuel is required. It is also stated on the fuel filler door that premium fuel is required, not recomended. It also states in the passport to service book that any damage done by using the wrong octane fuel voids the warranty. If Land Rover stated premium fuel was recommended, that's something else, but if it's required, then it's simply required.

As far as AV fuel goes, stay away at all costs as AV fuel is leaded, and you know what lead does to O2 sensors and Cats.

Just use premium fuel from a station with a high turnover rate as Ducati stated, and you'll do fine as long as it's a decent name brand fuel. If you can afford to buy and maintain a Discovery, why skimp on the fuel?
 

Land Rover Certified Used A**hole (Jason)
Senior Member
Username: Jason

Post Number: 486
Registered: 04-2002
Posted on Tuesday, June 24, 2003 - 08:18 pm:   Edit Post Delete Post Print Post

If you don't use premium gas your Disco will explode. Happened to a buddy of mine. Blew up right in his face. While it was a tragic loss, it got me thinking. I sent my wife out to refill the Disco and I told her to put regular in it. She did and less than a block later, BOOM! Disco blew up. However, she survived and it left her permanently disfigured. Rumor spread about my buddy and within a week or so, the DA had a pretty good case regarding my *intentions* that day. Pretty much an open and shut case. I've got 70 years for the bit with the possibility of parole in 45. Won't matter if I get out early or not because the stupid Siera Club caught wind of the case and, more importantly, all of the hydrocarbons that hit the atmosphere when the Disco torched. They sued me for $3.5 million and the license plates I will manufacture over the next 45 years, less expenditures for cigarettes and preventing beat-downs, will only leave me owing $3.499 million on the lawsuit, so I don't care if I ever get out.

Heed my warning.
Jason from Cell Block 8
 

matt p (Joeydiven)
New Member
Username: Joeydiven

Post Number: 6
Registered: 06-2003
Posted on Tuesday, June 24, 2003 - 08:22 pm:   Edit Post Delete Post Print Post

thanks for answering my question about the occasional fillup with regular fuel...to reiterate..i am not skimping,being cheap, or hypocritical when i asked about cheap gas..my only motive for asking was to determine how damaging an occasional fillup would be because im sure my wife or some other good samaritan relative, would fill up my with reg and i wanted to know how vigilant i needed to be in advising my wife and others not to..... and as for greg's post that i was bragging about an HSE..listen bud i dont know what kind of issues you have about your LR..but i was just trying to be specific for the fellas about my model and year so that they could give me the best response....i wasnt bragging..so relax compadre
 

Ron Johnson (Chauner)
New Member
Username: Chauner

Post Number: 19
Registered: 05-2003
Posted on Tuesday, June 24, 2003 - 08:29 pm:   Edit Post Delete Post Print Post

I thought the same thing about Greg's post. But it also seems to me he is a little jealous. Just makes me want to say, "when I grow up, I want to be just like you!"
 

June H. Han (Junehhan)
New Member
Username: Junehhan

Post Number: 17
Registered: 04-2003
Posted on Tuesday, June 24, 2003 - 11:25 pm:   Edit Post Delete Post Print Post

I think rather than worry about whether your wife or some friend of relative filled your Disco up with, why not just refuse to loan it out? Besides, even if you loan it out, and they read the "premium fuel required" label which is posted in clear view on the filler door, and they still fill it with regular, then they DON'T deserve to be borrowing your Disco.
 

Brent Bevil (Brbevil)
New Member
Username: Brbevil

Post Number: 12
Registered: 02-2003
Posted on Wednesday, June 25, 2003 - 09:30 am:   Edit Post Delete Post Print Post

I've used 89 octane since 70K not at 115K and never had any issues.

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