Ray LeTourneau
Senior Member - Past Moderator
To use or not to use? That is the question. I'm new to the ranks of diesel owners just buying my first last week. Duramax LB7 by the way. The truck seems to run fine and I understand the Ultra low sulphur shouldn't be a problem. Does anyone suggest using an additive just as a precautionary measure or just too keep injectors clean? I saw an ad for Stanadyne and it sounds like pretty good stuff. I've browsed the diesel sites and there are too many opinions mostly from folks that have modified thier engines in some way. Mine is stock. Thanks in advance for any advice.