At 50,000 miles it's just really getting broken in......stick with what has worked and no doubt will continue to work. 
Oil
Thread Starter
Racer
Joined: Jan 2005
Posts: 381
Likes: 0
From: Los Angeles Ca
Oil
Ive got 50,000 miles on my C6 Z51 Manual. Ive always used the recommend oil - any thoughts about using something heavier? Its my DD and I usually put in a 1/4 pint every other month. Doesn't leak - just the shifting and stop and go fwy out here in LA.
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
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Safety Car
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
I would recommend:
Mobil 1 5w30
Mobil 1 0w30
Mobil 1 Racing 0w30
the regular M1 0w30 and 5w30 are GM approved
the racing one isnt GM approved because it isnt good for cats, but it has the strength of a thicker oil and a better additive package... Price is also double of what regular costs.
Mobil 1 5w30
Mobil 1 0w30
Mobil 1 Racing 0w30
the regular M1 0w30 and 5w30 are GM approved
the racing one isnt GM approved because it isnt good for cats, but it has the strength of a thicker oil and a better additive package... Price is also double of what regular costs.
Racer
Joined: Apr 2006
Posts: 486
Likes: 2
From: The Villages FL
If you are back gearing in traffic ie using the engine to slow the car to save you brakes, you will burn some oil. A quarter pint in a month (milage?) is cheaper and easier to replace that brake pads. Keep using the recommended oil and don't worry.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Stick with the factory Mobil 1. I LOVE the oil threads that get started around here... unless you track the car all the time, there has never been any solid proof that the factory recommended oil is not sufficient.
Race Director
Joined: Nov 2005
Posts: 14,549
Likes: 1,540
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
I would recommend:
Mobil 1 5w30
Mobil 1 0w30
Mobil 1 Racing 0w30
the regular M1 0w30 and 5w30 are GM approved
the racing one isnt GM approved because it isnt good for cats, but it has the strength of a thicker oil and a better additive package... Price is also double of what regular costs.
Mobil 1 5w30
Mobil 1 0w30
Mobil 1 Racing 0w30
the regular M1 0w30 and 5w30 are GM approved
the racing one isnt GM approved because it isnt good for cats, but it has the strength of a thicker oil and a better additive package... Price is also double of what regular costs.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Unless you're in a very cold climate, there is no need for a 0w30. Also, racing oils are not always good for use on street engines. True, they do have more zddp, but they typically lack additives and detergents that non-race engines need to fight against fuel dilution and moisture. Just because it says "racing" on it does not mean its better for your daily driven car as well.
Safety Car
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
Unless you're in a very cold climate, there is no need for a 0w30. Also, racing oils are not always good for use on street engines. True, they do have more zddp, but they typically lack additives and detergents that non-race engines need to fight against fuel dilution and moisture. Just because it says "racing" on it does not mean its better for your daily driven car as well.
Doing a some searching a while back lead me to the fact that M1 racing (the non motorcycle spec) is not recommended for street use because 1: it is bad for the cats 2: The US has a stricter standard on the amount of additives that go into oil than you see in other vehicles such as those in europe.
If they had an m1 racing 5w30 I would recommend that (it only comes in 0W30 and 0W50), but just because it is a 0W oil doesnt mean it is an oil tailored mainly for the cold. The oil has the strength of thicker stuff. The charts are right there on the mobil 1 website.
http://www.mobil.com/USA-English/Lub...cing_Oils.aspx
http://www.mobil.com/usa-english/mot...duct_guide.pdf
Lastly, I wouldnt recommend this oil for a DD because you would be spending 100 dollars per oil change, however I do recommend it for street cars that see hard use such as weekend fun cars.
