Who's going to change to the Mobil 1, 0W-40
02-23-2018, 05:43 PM
#2
Le Mans Master
Member Since: Jan 2016
Location: New Mexico
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2018 C6 of Year Finalist
Nope.
02-23-2018, 05:46 PM
#3
Le Mans Master
Where did you see Mobil telling us to change? A tv commercial or a magazine ad means nothing to me. If it is stated in an article that gives a solid reason that makes sense to me, I would listen. If not, I will stay with what GM says since they designed the engine.
Last edited by HBsurfer; 02-23-2018 at 05:49 PM.
02-23-2018, 06:07 PM
#4
Team Owner
Stick with what your owner's manual says.
02-23-2018, 06:39 PM
#6
Team Owner
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Location: Oklahoma City OK
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C6 of Year Finalist (appearance mods) 2019
No I'm not changing.
02-23-2018, 06:43 PM
#7
the thinner the oil, the lower your oil pressure is going to be a idle instead. Hence if your oil pressure is below say 30lbs at idle, you already have problems, and going with a thinner oil is going to push you even more in the wrong direction instead.
02-23-2018, 07:42 PM
#8
Burning Brakes
C6s in Europe have always used 0w40.
Last edited by sjw91; 02-23-2018 at 09:42 PM.
02-24-2018, 12:06 AM
#13
Le Mans Master
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I thought I read where GM recommends it for LT engines in the C7. Not the LS motors in the C6. So no I am not switching.
Last edited by Vet Interested; 02-24-2018 at 12:07 AM.
02-24-2018, 01:04 AM
#15
Le Mans Master
Last edited by HBsurfer; 02-24-2018 at 01:05 AM.
02-24-2018, 02:01 AM
#16
Le Mans Master
In answer to your question...no, I'm not changing. On the other hand, 5w-30, 0w-40...not enough difference in my opinion to make a difference, but then I'm not an oil or engine engineer. I've been told to use Motul, but I've never heard of it before. I also have a friend who thinks Pennzoil is the only oil made. I'll stick with Mobile 1 5w30. Its worked this long.
02-24-2018, 05:27 AM
#18
Race Director
Why would I put any other weight oil in my car other than what is recommended in my owners manual? only a dumbass who knows nothing about engines would do that. IMO
02-24-2018, 07:32 AM
#19
Instructor
02-24-2018, 08:21 AM
#20
this is so inaccurate it’s comical. Idle pressure on the non dry sump engines is rarely over or at 30 psi when oil is over around 200 deg for most LS engines....and that is normal. The high weight is the same as what is spec so the high temp viscosity is the same as spec. The low weight mumber means better viscosity flow when colder than 5 weight. You want the oil moving around with ease when cold. 0-30w is actually a better oil for northern cars in the cold months.