Chevy and GMC Duramax Diesel Forum - View Single Post

byronbaumann · 03-17-2007, 01:06 AM

I use Amsoil 15W-30 exclusively and find that it doesn't start looking dirty until about 7500 miles or so. Maybe try Amsoil? My mileage inproved with the use of it also.

03-17-2007, 01:06 AM	eBay Motors #4 (permalink)
byronbaumann Senior Member Join Date: Mar 2007 Location: North Texas Posts: 197	I use Amsoil 15W-30 exclusively and find that it doesn't start looking dirty until about 7500 miles or so. Maybe try Amsoil? My mileage inproved with the use of it also.