I see Chevron Delo 15w40 on sale at $30 for 6 gallons. Is this an O.K. oil and at the correct grade for my 98 2500 24 valve with 115,000 miles ? I plan on keeping this one 4-EVER , so I want to treat her right.

 

Delo 400 15W-40 is one of the best (some of us would say the best) dino (i.e., non-synthetic) oils for our trucks. We tow a 13,500 lb 5th wheel that puts us on the road at 21,180 lbs GVW (21,500 lbs GVWR), and Delo 400 and Fleetguard Stratapore filters have done an excellent job for us.

Rusty

 

Delo 400 one of the better oils to use........Pete

 

That is exactly what I bought at Costco........ Delo 400 15w40.

Thanks for the assurance.