1974 GMC Truck type of oil

1974 GMC TRUCK
90,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
BIGBIRD
  • MEMBER
  • 1 POST
this truck was bought from an old man that dis wonderful maintance on this truck. he always used 10w30 valvoline.
i bought this for my 20 year old son. im sure their driving styles are different.


what type oil should i use? the same as the old man or something else.

it does not leak or use oil. it was changed prior to me buying it.

thanks
Jan 26, 2009 at 1:49 PM
Advertisement
Avatar
DOCFIXIT
  • ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Stay with Valvoline superiour oil and if it keep that baby running this long why jump ship. Take care you have a rare jewel love to see a pic.
Jan 26, 2009 at 2:30 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.