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Chuck McGovern (Chuckster)
Member
Username: Chuckster

Post Number: 45
Registered: 09-2002
Posted on Monday, May 12, 2003 - 11:35 am:   Edit Post Delete Post Print Post

Hey Folks,

I've heard varying reports on which grade of oil to use in my truck, so I'll throw out my scenario and hopefully some of the gurus will chime in and bless me with a response...

Here's the lowdown:

- 94 DI SE7 Automatic - 140K
- Getting a valve job, planed head, and a new head gasket as we speak.
- Truck was running hot under load last summer (4wheeling on the beach), replaced radiator and water pump but still ran hot under load.

...now the kicker - I just bought a boat/motor/trailer that weighs 4520-lbs and will be towing it to Cape Cod each weekend this summer.

That said, what grade/make of oil would you recommend???

TIA,
Chuckster

 

Dave (Discoverover)
New Member
Username: Discoverover

Post Number: 40
Registered: 11-2002
Posted on Monday, May 12, 2003 - 02:41 pm:   Edit Post Delete Post Print Post

I think Mobil synthetics are the best; 10W 30 or 10W 40. I have 15W 50 Mobil synthetic racing oil in my 96'. This oil is thicker and made for higher temperatures.
 

Paul T. Schram (Paulschram)
Senior Member
Username: Paulschram

Post Number: 1459
Registered: 02-2002
Posted on Monday, May 12, 2003 - 04:24 pm:   Edit Post Delete Post Print Post

Chuck:
I change my oil every 3,000 miles or about every three weeks. I use dino 10-W30 that comes out of a big red five-gallon pail. Buying in bulk helps heal the pain of regular oil changes.

If you don't drive as much as I do, go with the synthetic, but if you are going to be changing often, I think the cost can become an issue.

Peace,
Paul
 

Jeffrey Pinson (Jeffro0502)
New Member
Username: Jeffro0502

Post Number: 37
Registered: 02-2003
Posted on Monday, May 12, 2003 - 08:34 pm:   Edit Post Delete Post Print Post

I like Castrol Syntec Blend 20/50. Best oil I've ever used, plus changing oil every 3000 miles.
 

Ron Brown (Ron)
Senior Member
Username: Ron

Post Number: 347
Registered: 04-2001
Posted on Monday, May 12, 2003 - 10:25 pm:   Edit Post Delete Post Print Post

My new favorite is 5w 40 rotella synthetic $12.84 a gallon at Wal-mart

Ron
 

Paul T. Schram (Paulschram)
Senior Member
Username: Paulschram

Post Number: 1462
Registered: 02-2002
Posted on Monday, May 12, 2003 - 10:29 pm:   Edit Post Delete Post Print Post

I pay $20/5 gallons, it comes out of a tank at the oil shop.

Peace,
Paul
 

thom mathie (Muskyman)
Senior Member
Username: Muskyman

Post Number: 273
Registered: 11-2002
Posted on Monday, May 12, 2003 - 10:44 pm:   Edit Post Delete Post Print Post

i run rotella in my scout and it is first rate all the way. there are millions of trucks on the road as testament to it.

but always mobile 1 in the disco 5/50 in the winter 15/50 in the summer. the cleaning ability alone is justifacation for the added cost...these are really dirty motors....also I go 5k between changes all the time at least with the mobile 1.
 

Chuck McGovern (Chuckster)
Member
Username: Chuckster

Post Number: 49
Registered: 09-2002
Posted on Tuesday, May 13, 2003 - 01:36 pm:   Edit Post Delete Post Print Post

Thanks Guys...

I was leaning towards the Mobil or the Rotella myself, just wanted to hear it from someone else I guess.

10/30 or 10/40 just seems too thin for me, I'd like to do everything possible to keep this pig cool...

Thanks for the input!
Chuckster
 

Dave Van Haren (Plain2000dii)
New Member
Username: Plain2000dii

Post Number: 6
Registered: 05-2003
Posted on Tuesday, May 13, 2003 - 01:48 pm:   Edit Post Delete Post Print Post

Chuckster, My memeory tells me that thinner oil cools an engine better. Plus the advantage of less HP loss due to higher viscousity. Don't really know though, it just seems that a lighter weight oil would pump faster/easier and have a better thermal characteristic than heavier oil.
 

Norm Orschnorschki (Norm)
Member
Username: Norm

Post Number: 43
Registered: 02-2003
Posted on Tuesday, May 13, 2003 - 02:47 pm:   Edit Post Delete Post Print Post

Valvoline VR1 Racing Oil -- 10w30 or 20w50.
 

Alex Cabrera (Alexcabrera)
Member
Username: Alexcabrera

Post Number: 111
Registered: 12-2002
Posted on Tuesday, May 13, 2003 - 07:07 pm:   Edit Post Delete Post Print Post

20/50 for hot southern weather here in jawja. (GA) Castrol that is. 138K 1997 D1
 

D. Chapman (1hank1)
Member
Username: 1hank1

Post Number: 230
Registered: 02-2003
Posted on Tuesday, May 13, 2003 - 07:56 pm:   Edit Post Delete Post Print Post

I have been running Valvoline 10/w30 in my 97 disco since 70,000 miles. I now have 120,000 and have never done anything to the motor, not even the valves. I don't think the brands of oil really make a difference. Amsoil and Mobil 1 are good oils and I have seen them takes trucks over 200,000, but really I think the secret is changing the oil regurlary and driving habits.
 

Peter Matusov (Pmatusov)
Senior Member
Username: Pmatusov

Post Number: 740
Registered: 09-2002
Posted on Tuesday, May 13, 2003 - 08:08 pm:   Edit Post Delete Post Print Post

Thom,

what a coincidence - I run Rotella 15W40 dino in my jeeps, and Castrol or Mobil 5W50 synthetic in the rovers.

D.C., if you thing all oils are the same, check this. For the same nominal viscosity rating, there may be 46% difference in viscosity index, and pour temperature can vary from -10C to -49C.

peter
 

D. Chapman (1hank1)
Member
Username: 1hank1

Post Number: 232
Registered: 02-2003
Posted on Tuesday, May 13, 2003 - 08:24 pm:   Edit Post Delete Post Print Post

I guess I ment "name brand" oils, I have never heard of half of those oils.
 

Daniel Rivenbark (Denali_dan)
New Member
Username: Denali_dan

Post Number: 5
Registered: 04-2003
Posted on Tuesday, May 13, 2003 - 08:56 pm:   Edit Post Delete Post Print Post

Synthetic oils are the best. They never break down, they just get dirty. Change your filter every 2k and top off the resevoir. I like Mobile and Castrol syns the best.

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