Keystone RV Forums - View Single Post - GM Recommends TopTier Diesel, but it's hard to find

mace14638 · 12-31-2018, 08:46 AM

The Costco near us (Riverton, UT) sells “Top Tier” fuels. The logo is on the pump. My advice with any diesel fuel is use a quality fuel additive every time you fill up. I learned this lesson the hard $$$$ way.

12-31-2018, 08:46 AM	#15
mace14638 Junior Member Join Date: Oct 2018 Location: Riverton Posts: 14	The Costco near us (Riverton, UT) sells “Top Tier” fuels. The logo is on the pump. My advice with any diesel fuel is use a quality fuel additive every time you fill up. I learned this lesson the hard $$$$ way.