What weight oil do you guys use in your stock GBody?

[1984-monte-carlo-ss]

located on long island, previous owner used 10w-40 is that too high?

 

[Doug213xrj]

No. I run 10W40 in all my toys, But the Trailblazer get 5W30.

 

[-83MONTESS-]

x2 on the 10w40 I use 10w40 Valvoline.

 

[Bonnewagon]

10W-40 is fine. 0W and 5W is specified for Women who have the gear selector in 'Drive' before the starter disengages. :shock:

 

[85cut420]

10W-40 in my Cutty as well. Mine's Quaker State since the local store had it on sale for 2.99/qt.

 

[Dugan]

I run 15w40 in all of my sbc's only oil with zinc oxide still remaining unless you want to buy special oil, rotella T

 

[lildhix]

10w-30

 

[Evan11]

15w40 chevron or 10w40 halvoline usually

 

[burgundy83]

5w30 cause it gets damn chilly and hot here

 

[mheath717]

I run 10w-30 Castrol GTX in my Oldsmobile. I run 5w-30 Castrol GTX in the GMC truck.