- Joined
- Nov 29, 2009
- Messages
- 7,268
I've been using either murphy fuel or Kroger fuel the last year or so and occasionally i'll fill up at the shell station that's brand new and has the same price as Kroger and walmart. I noticed whenever I use the shell fuel it runs good, but whenever I use the cheaper fuel I notice a bit more of a lope out of the engine standing by the exhaust. I don't think I've noticed it when using the shell fuel. It runs nice and smooth. What do you guys think? I always use stanadyne lubricity formula, this lubricates, but doesn't increase the cetane any.