What oil do you use in your truck?

[AllZWay]

I run Mobil 1 in my Z-28, but curious as to what most people run in their trucks.

 

Conventional or Synthetic or Blend and what weight?

[MarkD]

Mobil 1 synthetic 5w-30

[JimWilson]

Castrol or Quaker State 5w-30, which ever is on sale.

[AllZWay]

Thanks for the quick replies... Does no one run 10W30?  Why 5W-30?

 

I run 10W30 in my Camaro and it has worked great over the years and much abuse at the tracks.

[gmcjoe]

Mobil 1 synthetic 5w-30

Same here.  5w-30 is what GM recommends.

[MarkD]

Ditto.

 

My 97 Camaro SS used recommended 10w-30

 

5.3L truck uses recommended 5w-30

[CMNTMXR81]

Valvoline dino oil.  5W-30.  Why?  I change it enough and it's considerably cheaper than Mobil1.  Since I'm not towing 16,000lbs daily, it isn't being pushed too hard, therefore the cost of the Mobil1 isn't necessary.