Mobil I

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Apr 16, 2008 | 12:38 PM

redvette6spd

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From: Minneapolis MN

Mobil I

I have a sort of a dumb question I want to pick up a oil change for my LT4 on my way home from work and I cant remember the weight of Mobil I to buy

Thanks

Apr 16, 2008 | 12:43 PM

Aardwolf

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From: WI

What I usually do is use 5-30 then as the engine wears, say 100k miles, switch to 10-30. I live in a climate that is not hot all the time though. A hot or cold climate may affect your choice.

Apr 16, 2008 | 04:04 PM

skybolt31

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From: Westfield MA

The oil needs to meet the GM4718M specification, the only Mobil 1 that I could find that says on the bottle that it meets that spec is the 5-30. The penzoil platinum in 5-30 and 10-30 meet it. Those were the only ones that I could find that meet the spec.

Apr 16, 2008 | 04:39 PM

redvette6spd

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From: Minneapolis MN

I got the 5-30 thanks

Apr 17, 2008 | 12:09 AM

rws.1

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From: Lake Havasu City, AZ

Apr 18, 2008 | 10:24 AM

DVNCI

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From: Bowling Green KY

Quote:

Originally Posted by Aardwolf

What I usually do is use 5-30 then as the engine wears, say 100k miles, switch to 10-30. I live in a climate that is not hot all the time though. A hot or cold climate may affect your choice.

I've just started switching my higher mileage vehicles to 10W-40.

Just changed from 5W-30 to 10W-40 in my truck and it quieted down.

Aardwolf - you probably know this but not much difference in 5W-30 and 10W-30 - once warm they are the same weight so you are only seeing slightly thicker oil when the engine is cold.