| Author | Message | ||
     David Seger (Croakus) New Member Username: Croakus Post Number: 33 Registered: 06-2003 |
So what will really happen if I put regular gas in my 2001 Discovery. It says "Premium Only" and I've heard that the waranty requires high octane only. What do you guys think? | ||
| Phillip Perkinson (Rover4x4) Senior Member Username: Rover4x4 Post Number: 446 Registered: 02-2003 |
it will cause your heads to malfunction therefore resulting in the failure of your motor. This has been disscussed at length, search the archives. | ||
| Curtis N (Curtis) Dweb Lounge Member Username: Curtis Post Number: 661 Registered: 05-2002 |
LOL. I am not so sure that the engine will fail.  Either way, the issue is more a matter of efficiency. Since your compression ratio and ignition timing are set to run on premium, the engine will actually run better. This will likely compensate for the .20 extra you pay at the pump. The lack of pre-ignition will also make for less carbon deposits in the combustion chamber. The key is to always run the recomended octane level in any engine. Not more and not less. | ||
| June H. Han (Junehhan) Member Username: Junehhan Post Number: 101 Registered: 04-2003 |
There will be a lot of opinions on this, but I have to agree with what Curtis said. Besides, if you buy a Land Rover, why get cheap on the gas? | ||
| Jules98 (Jules98) New Member Username: Jules98 Post Number: 10 Registered: 09-2003 |
That question sparked in my mind, but i figure there is a reason for it and down the road, when warranty is out and your LR is getting older, you'll regret it...so don't be a cheapskate!!!!! $5 bucks more per tank?? come on..u'll survive. | ||
| Alan Yim (Alan) Senior Member Username: Alan Post Number: 755 Registered: 09-2002 |
Your truck will be much happier for it and you will feel a difference in the way the engine runs. From my own experience, on Regular, the engine runs a litte rough, and on Premium, the engine is smoother. | ||
| Dave Smith (Javelinadave) Member Username: Javelinadave Post Number: 51 Registered: 07-2002 |
Nice try Phillip. YOU WILL NOT CAUSE YOUR ENGINE TO FAIL. You will not void your warranty. That is just stupid. You may or may not find a difference in the way you truck runs. Give it a try. If you travel thru Mexico or even rural parts of the U.S., premium gas may be hard to find. As for being a cheepskate, not every Rover owner is dripping of money. There was a thread last year about Rover Snobs! Good luck and give it a try. Good luck....Dave | ||
| Sergei Rodionov (Uzbad) New Member Username: Uzbad Post Number: 37 Registered: 08-2003 |
David, as Dave said - give it a whirl. One tank or better yet portion of tank wont hurt you much, and you can feel difference for yourself, if there will be any. Listen to engine, try to run it uphill, in both ranges... But do not forget to run some cleaner through system every now and then, if you running lower grade. | ||
| Curtis N (Curtis) Dweb Lounge Member Username: Curtis Post Number: 665 Registered: 05-2002 |
Sergei, "But do not forget to run some cleaner through system every now and then, if you running lower grade." I think you may be missing the point. I may be mistaken, but your '94 runs on 87 octane. The DS2's have a higher compression ratio and tend to be much more tempramental. Granted, a little won't hurt, but our friend here seems to be looking for a cheap and permanent alternative. To that end, "cleaner" of any sort is not going to clean carbon deposits in the combustion chamber. Further, the more deposits you have in the cylinder, the more likely the engine will suffer from preignition. Curtis | ||
| Garrett S Larance (Guntherrocks) New Member Username: Guntherrocks Post Number: 9 Registered: 08-2003 |
If you want to save money wait for a sale on octane booster and then carry a case with you in the back of the Rover. That's one option, but you have to find the octane booster on sale. Make sure you put enough in for your tank capacity as well. Just a thought. | ||
| Sergei Rodionov (Uzbad) Member Username: Uzbad Post Number: 41 Registered: 08-2003 |
Curtis, nope, it should be running on same premium one as all others Its european car, hence requirements for higher ratings. I am not saying it would be healthy rig if you running low octane. But my point is - even if you getting high grade - there is no real guarantee that its higher. Face it - all those shady stations like shamrock, pillips66 (YICKES) and other funky ones - more ofthen than not got petrol that isnt really follow correct grades (you can see it going at like twice speed of normal one). So it wont hurt once in a while to try lower grade just for the heck of it - you getting crap in fuel system anyway. Personally i dont like play with grades, when i have chance to get correct one. But if you run crappy quality fuel - you better off to run cleaner Plus you always can play with mixture & timing to resolve preignition, if you getting serious about running low octane I still dont see much point in saving 4 bucks per tank (right now diff here between premium and regular is 20 cents) while loosing mileage (yes mileage would be worse). On correct grade even my old one been making about 18-20mpg on highway through mountains, while i was driving it from Denver. | ||
| John E. King, Jr. (Cadet007) New Member Username: Cadet007 Post Number: 35 Registered: 02-2003 |
I just finished replacing an injector in my 99D2 under warranty and I can promise you cheap gas in the long run is a bad way to go. Premium gas in Alaska is sometimes questionable to begin with which is why I'm sure I had the injector problem. If there's one thing you can do for your Rover put premium in it. | ||
| Ian Bentley (Ibentley) New Member Username: Ibentley Post Number: 23 Registered: 06-2003 |
A '01 Disco's EFI system should compensate for lower octane gas by retarding the timing as necessary. The anti-knock sensors detect any tendency to ping, and the timing is adjusted accordingly. A couple of tanks of low octane gas shouldn't hurt anything. BUT, both power and mileage are going to suffer. You may find you spend more money on poor mileage than you save on a tank. Also, premium should have more detergents, etc. in there to help the engine run clean. I've found differences in performance from gas bought at different stations. Like Sergei says, you have to trust that what comes out of the ground matches the label. And that the delivery driver was awake when he pumped it into the ground. (Ever see 100 gallons of gas in a puddle on the street? Not a pretty sight.) Run cleaner periodically. It, and good gas, are cheaper than injectors and valves. | ||
| David Seger (Croakus) New Member Username: Croakus Post Number: 35 Registered: 06-2003 |
Wow, I didn't know what I was opening up there! I do not intend to put low grade gas in my Rover. I was just curious about the general opinion. I really doubt if my engine would fail though, that sounds a bit extreme -G-. |
