Oil for GM 8.1

[LILGUY]

I have a 03 Yukon 2500 w/8.1 ltr eng.14,000 miles in 2 years short drives, then 6000 lb Boat tows on occasions, sits for days at a time. which Mobil 1 should I use.Thanks

 

[sbc350gearhead]

10w30 or 0w40 would work fine.

 

[wavinwayne]

I would use M1 Truck & SUV 5w40, or M1 EP 10w40, if you can find it.

 

[Chris142]

Lemme know when you need to replace the radiator in this truck and I'll give you the secrets....You start by removing the headlights!

 

[Starbreaker666]

I would run a 5w40 or the Mobil T&SUV. These 8.1's are a bit of a oil burner. At least to the folks that I have talked to who own 'em....

 

[sands]

quote:

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Originally posted by LILGUY:
I have a 03 Yukon 2500 w/8.1 ltr eng.14,000 miles in 2 years short drives, then 6000 lb Boat tows on occasions, sits for days at a time. which Mobil 1 should I use.Thanks

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If it's hot in your area Mobile 1 EP 15W50 or the 5W40 truck/suv oil will give you the protection you need under those severe driving conditions.

 

[c502cid]

My 2003 8.1 uses maybe a 1/2 qt every 3000 miles. I run Mobil T&SUV.

 

[Islandvic]

All I can recommend are AC DELCO, WIX, or Bosch Premium filters.

If M1, try 10-30 or 5-40.

 

[LILGUY]

I had tried 5w30 w/ Mobil 1 fltr but not sure about this combo.GM says 5w30 first choice ,what about heavy hauling and long parking intervals.I was running 5w30 dino and AC fltr.Engine seems a bit louder on start up now. Thanks

 

[davefr]

As an aside, how do you like the performance of the 8.1? Is it "spirited" in everyday driving.

It appears the 8.1 is the only big block gas V8 truck engines left.

 

[DEWFPO]

c502cid,

Do you use a remote oil filter on your 8.1?

DEWFPO

 

[LILGUY]

Ford and Dodge have V10s. My 8.1(496 cid)does not have a remote fltr.Very quick for a 6000lb+ vehicle(410 rr end).Pulls like a freight train, seven passengers plus 24 foot boat and gear.10 MPG.

 

[c502cid]

No go on the remote, just the factory filter.
Mine runs real strong but I have a few mods to it.

 

[oilpan49]

quote:

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Originally posted by davefr:


It appears the 8.1 is the only big block gas V8 truck engines left.

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GM also makes the 6.0L V8. This is also a BB Chevy.

I always was a fan of 3/4 and 1T trucks regardless of make

I agree with some others about T&SUV 5w40. If it sits for days at a time causing most of the oil drops going back into the sump, then start it up, it will need fast start up protection. Then when your towing, you got the 40wt to protect you. Seems to me, the more I think about it, 5w40 oils seem like good oils for vehicles that sit for awhile, then start up. Isn't 5w40, just genius

I'm overreacting,,,,,AR

 

[Islandvic]

airbornRanger quote:

quote:

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GM also makes the 6.0L V8. This is also a BB Chevy.

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Sorry, but wrong.

The GM Corp 6.0 V-8 is the larger LS1 based SB Vortec.

Shares block with the 4.8 and 5.3 blocks.

My Dad's '03 GMC 2500 4x4 has the 6.0 Vortec.

Great engine, but its a small block.

 

[LILGUY]

I have 14000 miles, have had 1 ring and pinion failure and limited slip clutch plate shudder problem.GM uses syn diff oil and an additive.