Mobil 1!
Instructor
Joined: Jan 2007
Posts: 214
Likes: 0
From: Logan ut
car quest has their synthetic oil. its actually made by valvoline. when i found that out i started running it in my honda. i never buy "no name" oil otherwise. as for how much i pay for oil changes for the vette...5 quarts mobil 1 and filter- $30 bucks +/-
Instructor
Joined: Mar 2002
Posts: 231
Likes: 17
From: Henrico VA
Lots of Opinions!
Castrol Syntec meets and exceeds the same specs as Mobile One. The issue is the ability of the oil to withstand the heat and not break down. Just change the oil every 3-6 months or 3-4 K miles and don't wait for the oil life monitor to tell you to change your oil.
Pro
Joined: Feb 2004
Posts: 507
Likes: 0
From: Owatonna MN
I've seen ranges on my oil life from 5k to 9k before the change oil soon nag message comes up, depending on how I've driven it. Most of the folks in my local corvette club change it once a year before putting it into storage since they don't drive their cars much. I do drive mine, and usually make it 5 months or so before the first change of the year, and then I change it again just before putting it into storage for the winter.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
AMSOIL included both Castrol and Penzoil synthetics along with the base Mobil 1 in the older test and the newer Mobil 1 Extended Performance in these two oil comparisions. The info in these tests may help you decide:
Comparative Motor Oil Test Nov 05
Comparative Motor Oil Test Dec 03
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C66 Racing #66 NASA ST2, SCCA T2
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AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
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Drifting
Joined: May 2006
Posts: 1,807
Likes: 2
From: NE of Philly Pa
I'm on my third vette, and I have only run Mobil 1.
1st 1989 bought with 65k sold with 145K
2nd 1993 bought with 55k sold with 133k
3rd 2001 bought with 33k now had 38K
I've never had any engine issues, and when I had my '89 I was much younger. Every light was a race, and I hit it hard and often.
I see no reason to try any other oil.
1st 1989 bought with 65k sold with 145K
2nd 1993 bought with 55k sold with 133k
3rd 2001 bought with 33k now had 38K
I've never had any engine issues, and when I had my '89 I was much younger. Every light was a race, and I hit it hard and often.
I see no reason to try any other oil.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
QUOTE!
"How much do you guys pay for an oil change with Mobil 1? I only have 12,000 on my '04 C5. I've had 3 oil/filter changes and they've all been invoiced at ~$75.00 (at the stealer-ship).
Actually, I haven't paid a nickel yet, since 5 free oil changes was a "sweetener" the dealer threw in at the last minute during the final purchase negotiation."
Theres the problem!!!! Those stealer ships charge 1/3 markup over what you can get on the outside.
Get a good working relationship with a NON dealership service center and you will save tons of bucks in the LONG run!
If you cant change it yourself,,,,,anything except a dealership! Just make sure you do your homework and ask questions and observe what they do.
"How much do you guys pay for an oil change with Mobil 1? I only have 12,000 on my '04 C5. I've had 3 oil/filter changes and they've all been invoiced at ~$75.00 (at the stealer-ship).
Actually, I haven't paid a nickel yet, since 5 free oil changes was a "sweetener" the dealer threw in at the last minute during the final purchase negotiation."
Theres the problem!!!! Those stealer ships charge 1/3 markup over what you can get on the outside.
Get a good working relationship with a NON dealership service center and you will save tons of bucks in the LONG run!
If you cant change it yourself,,,,,anything except a dealership! Just make sure you do your homework and ask questions and observe what they do.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
Any oil that meets or exceeds GM4718M will do.
The ones I know that do that are
Mobil 1
Pennzoil Platinum
Castrol Syntech
Amsoil
Royal Purple
There is currently debated controvery regarding the new API SM classification. To reduce phosphorous for emissions reasons a key anti wear compound Zinc di-thio phosphate (ZnDTP ) has been reduced.
this has allegedly led to premature wear on roller cams. ANY brand of oil that claims SM status faces this issue.
While all companies have increased other antiwear components, aftermarket performance some cam manufacturers are now recommending the use of Shell Rotella T Full Synthetic 5W40 in the LSx engines. (or other major brands of diesel engine oil like Mobil Delo)
Since thye are formulated for diesel engines to last 1 Million miles, and are intended for mixed industrial fleets, they do not need to comply with the SM category and continue to maintain the use of ZnDTP.
The ones I know that do that are
Mobil 1
Pennzoil Platinum
Castrol Syntech
Amsoil
Royal Purple
There is currently debated controvery regarding the new API SM classification. To reduce phosphorous for emissions reasons a key anti wear compound Zinc di-thio phosphate (ZnDTP ) has been reduced.
this has allegedly led to premature wear on roller cams. ANY brand of oil that claims SM status faces this issue.
While all companies have increased other antiwear components, aftermarket performance some cam manufacturers are now recommending the use of Shell Rotella T Full Synthetic 5W40 in the LSx engines. (or other major brands of diesel engine oil like Mobil Delo)
Since thye are formulated for diesel engines to last 1 Million miles, and are intended for mixed industrial fleets, they do not need to comply with the SM category and continue to maintain the use of ZnDTP.
Cruising
Joined: Feb 2007
Posts: 13
Likes: 1
From: Hartford CT
Thanks, Bill. I need to do that. I've been pretty happy with the dealer (who is, without naming names, just north of you near UCONN). I will need to find someone when the time comes to do tires and pressure transmitters without gouging the wheels. My understanding is there are few (if any) dealers in our area who actually service what they sell when it comes to tire changes, so I'll need to find a good shop for that. Problem is, I haven't had any problems, so I haven't had an occasion to build a relationship with a shop.
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Pro
Joined: Aug 2005
Posts: 573
Likes: 0
How much do you guys pay for an oil change with Mobil 1? I only have 12,000 on my '04 C5. I've had 3 oil/filter changes and they've all been invoiced at ~$75.00 (at the stealership). 
Actually, I haven't paid a nickel yet, since 5 free oil changes was a "sweetener" the dealer threw in at the last minute during the final purchase negotiation.
Actually, I haven't paid a nickel yet, since 5 free oil changes was a "sweetener" the dealer threw in at the last minute during the final purchase negotiation.
with mobile 1 you do not have to change every 3000 miles.
Burning Brakes
Joined: Nov 2006
Posts: 1,071
Likes: 0
From: Goose Creek SC
Any oil that meets or exceeds GM4718M will do.
The ones I know that do that are
Mobil 1
Pennzoil Platinum
Castrol Syntech
Amsoil
Royal Purple
There is currently debated controvery regarding the new API SM classification. To reduce phosphorous for emissions reasons a key anti wear compound Zinc di-thio phosphate (ZnDTP ) has been reduced.
this has allegedly led to premature wear on roller cams. ANY brand of oil that claims SM status faces this issue.
While all companies have increased other antiwear components, aftermarket performance some cam manufacturers are now recommending the use of Shell Rotella T Full Synthetic 5W40 in the LSx engines. (or other major brands of diesel engine oil like Mobil Delo)
Since thye are formulated for diesel engines to last 1 Million miles, and are intended for mixed industrial fleets, they do not need to comply with the SM category and continue to maintain the use of ZnDTP.
The ones I know that do that are
Mobil 1
Pennzoil Platinum
Castrol Syntech
Amsoil
Royal Purple
There is currently debated controvery regarding the new API SM classification. To reduce phosphorous for emissions reasons a key anti wear compound Zinc di-thio phosphate (ZnDTP ) has been reduced.
this has allegedly led to premature wear on roller cams. ANY brand of oil that claims SM status faces this issue.
While all companies have increased other antiwear components, aftermarket performance some cam manufacturers are now recommending the use of Shell Rotella T Full Synthetic 5W40 in the LSx engines. (or other major brands of diesel engine oil like Mobil Delo)
Since thye are formulated for diesel engines to last 1 Million miles, and are intended for mixed industrial fleets, they do not need to comply with the SM category and continue to maintain the use of ZnDTP.
Have to cleat something up before the sky falls...
The issue with lower Zinc and phosphorous causing increased cam wear only applies to flat tappet cams.
Roller lifters don't have the sliding friction contact that flat tappets have and therefore isn't affected by the chemistry change of newer oil.
Hammer
Pro
Joined: Sep 2005
Posts: 538
Likes: 9
From: Geneva, IL Bring back the Chief!
St. Jude Donor '06-'07-'08-'09-'10,'13-'14,'19-'20-'21-'22
Melting Slicks
Joined: Mar 2006
Posts: 3,055
Likes: 0
From: Jax Florida