Winter Oil

[02slt]

Some of the guys at work were talking about this, and it got me wondering...

 

 

in extreme cold weather, -40ish... do you guys use a different oil weight?

 

 

I think our trucks are supposed to use 5 or 10 w, but would there be any adverse effects if you ran 0w for the winter?

[revrnd]

Actually GM says in the 2011 Silverado HD manual (page 10-9):

 

Cold Temperature Operation

 

If in an area of extreme cold, where the temperature falls below -29*C (-20*F), use either an SAE 5W-30 synthetic oil or an SAE 0W-30 engine oil. Both provide easier cold starting for the engine at extremely low temperatures. Always use an oil that meets the required specification, GM6094M.

 

When I get the chance I'll post some scanned pics from an Esso brochure about engine oils & gear lubes @ low temps.

[revrnd]

Lubes & low temps:

[revrnd]

Dino vs synthetic

[dewfpo]

I've used 0W30 and 0W40 and there are only benefits and no adverse effects (other than cost difference for synthetics).

 

DEWFPO

[revrnd]

Gear lubes

[02slt]

thanks for the info guys

next oil change I'll be swapping out for 0w-30

 

I'm personally not convinced that synthetic is worth the extra money, so I'll stick with dino oil

 

 

edit- those scanned brocures are interesting, can you go from synthetic oil back to dino?

or should you stick with synthetic once you make the switch

[SouthCo]

thanks for the info guys

next oil change I'll be swapping out for 0w-30

 

I'm personally not convinced that synthetic is worth the extra money, so I'll stick with dino oil

 

 

edit- those scanned brocures are interesting, can you go from synthetic oil back to dino?

or should you stick with synthetic once you make the switch

 

You can switch from dino to synthetic and synthetic to dino. You can even mix them. Haven't you heard of synthetic blend? That's what that is from the motor oil company. Just run full synthetic 5w-30. Yeah it's a few extra bucks but why not?

[Black02Silverado]

thanks for the info guys

next oil change I'll be swapping out for 0w-30

 

I'm personally not convinced that synthetic is worth the extra money, so I'll stick with dino oil

 

 

edit- those scanned brocures are interesting, can you go from synthetic oil back to dino?

or should you stick with synthetic once you make the switch

 

 

 

Yes, there are no problems switching back and forth from one to the other. I know several that run synthetic in the winter for the better start up protection and then switch back to conventional in the summer.

[02slt]

right on... I'll probably spend the $ and throw synthetic in next oil change

 

Could have sworn I remember reading somewhere that going from synthetic to dino was bad for the seals or something

 

 

Guess I'm starting to lose it haha

[jro909]

don't switch grades at all..5-30 year round...use to run 10-30 dino year round in my old truck with no problems, the key is to let it run a bit before going at it hard, it dosent take long for oil to thin out

[dewfpo]

Could have sworn I remember reading somewhere that going from synthetic to dino was bad for the seals or something

 

You probably did, but that doesn't make it true or accurate.

 

DEWFPO

[RaddHazzard]

Also I dont believe you can find a non synthetic 0w30 can you?

[jro909]

Also I dont believe you can find a non synthetic 0w30 can you?

 

 

no i don't think so, i don't think they can refine dino to be that thin with all the wax and stuff in it