what oil to use
08-20-2012, 08:28 PM
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what oil to use
The former owner of my 98 vette said he used 10-40 napa synthetic since he owned the car, so today I go to napa and had synthetic 5-30 for $3.50 a qt, bought a case, I know owners manual recommends 5-30, will there be any probs with me returning to 5-30, Thank you guys for all the knowledge I have received from this site!!!
08-20-2012, 10:08 PM
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The car will do just fine with 5W-30 oil in it instead of the 10W-40. I use Mobil 1 full synthetic in mine with that weight.
08-20-2012, 10:20 PM
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Oil specs are important to pay attention to, . . .
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
08-20-2012, 10:59 PM
#5
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I'm sure your owners manual will clearly instruct you to use a 5W/30 synthic with a GM Specs GM4718M, that's and important heat engineered additive in the oils package. My 2003 came with Mobil-1 5W/30 and it's never failed in any way for me so why change.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
08-21-2012, 09:10 AM
#6
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I'm sure your owners manual will clearly instruct you to use a 5W/30 synthic with a GM Specs GM4718M, that's and important heat engineered additive in the oils package. My 2003 came with Mobil-1 5W/30 and it's never failed in any way for me so why change.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
08-21-2012, 10:41 AM
#7
I would return to the recommended 5w30 as outlined in the owners manual. Mobile 1 is what I use in the Corvette but my other vehicles get Castrol 5w30 blend. There are other good choices, just stay with the correct viscosity and you'll be fine. 
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08-21-2012, 10:05 PM
#11
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I'm sure your owners manual will clearly instruct you to use a 5W/30 synthic with a GM Specs GM4718M, that's and important heat engineered additive in the oils package. My 2003 came with Mobil-1 5W/30 and it's never failed in any way for me so why change.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
Your going to get a hundred "expert" poinions, but for me, The guys who work at GM powertrains division and they said 5W/30 with a oil that passes GM4718M. Good enough for me. I have enough crap to want to re-engineer, but I'm not going to argue with the experts who built my Corvette.
08-22-2012, 01:24 AM
#14
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Why the hell was he running a 10w40 oil? Jeez... If its stockish there's absolutely no need for that.
I'm running 5w30 Mobil 1 full synthetic in my Z06 and 02 Trans Am. You can catch some good deals at the part stores on it. Usually 5qts and a Mobil 1 filter for $30, even though you'll need more oil.
I'm running 5w30 Mobil 1 full synthetic in my Z06 and 02 Trans Am. You can catch some good deals at the part stores on it. Usually 5qts and a Mobil 1 filter for $30, even though you'll need more oil.
