Oil change question

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Apr 11, 2011 | 09:03 AM

prestige6

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Oil change question

I am a C1& C2 person. I bought my 99,a little over a year ago. Time for an oil change, says to use Mobil 1 5w30... Can I use 10w40 syntec????

Sorry,I meant 5w40 Syntec

Last edited by prestige6; Apr 11, 2011 at 09:37 AM.

Apr 11, 2011 | 09:22 AM

jrose7004

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From: Oklahoma City OK

C6 of Year Finalist (appearance mods) 2019

I'd use what the manual says then there's no question.

Apr 11, 2011 | 09:23 AM

Chuck A

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From: Long Island NY

St. Jude Donor '08-'09

Quote:

Originally Posted by jrose7004

I'd use what the manual says then there's no question.

Apr 11, 2011 | 09:24 AM

Jewjenk

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From: Columbia South Carolina

The car and the manual states 5W-30 why change? The internals have smaller clearances. 5W-30 or 0W-30.............Or you can do a search and check what come up....................

Apr 11, 2011 | 09:26 AM

Jewjenk

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From: Columbia South Carolina

Quote:

Originally Posted by Jewjenk

The car and the manual states 5W-30 why change? The internals have smaller clearances. 5W-30 or 0W-30.............Or you can do a search and check what come up....................

Oh and-------

Apr 11, 2011 | 09:28 AM

DeeGee

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From: Horncastle Lincolnshire, England

2023 C5 of the Year Finalist - Unmodified

Plenty of others do. Just make sure the oil complies with GM 4718M and Castrol Syntec does. I prefer to stick to the recommended oil but thats just me.

BTW I still have oily hands from changing my oil

Last edited by DeeGee; Apr 11, 2011 at 09:31 AM.

Apr 11, 2011 | 09:53 AM

prestige6

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ttt

I am a C1& C2 person. I bought my 99,a little over a year ago. Time for an oil change, says to use Mobil 1 5w30... Can I use 10w40 syntec????

Sorry,I meant 5w40 Syntec.....

Apr 11, 2011 | 10:21 AM

ztheusa

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From: Taildragers rule! USA1

No.

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Apr 11, 2011 | 12:26 PM

baxsom

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From: Rockledge FL

remember the manual doesnt say you have to use mobil1, it just recommends it.

Apr 11, 2011 | 01:13 PM

#10

DeeGee

Tech Contributor

Joined: Dec 2003

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From: Horncastle Lincolnshire, England

2023 C5 of the Year Finalist - Unmodified

Quote:

Originally Posted by baxsom

remember the manual doesnt say you have to use mobil1, it just recommends it.

The following Major Brands meet GM 4718M

Any oil that meets this spec is fine for your Vette..
Formula Shell fully Synthetic
Pennzoil Platinum
Quaker State HorsePower
Castrol Syntec
Mobil 1

There are probably more