lucas synthetic 5-20 in the boat for the last 2 years, same stuff in the motorhome and wife's mini cooper s. very happy with it.
lucas heavy duty oil stabilizer and injector cleaner in the duramax.. on my long trips, the injector cleaner is good for an additional 1mpg if i haven't run any for a few tank fulls. all good stuff.
my son has been using the oil stabilizer in his kenworth for the last 3 years, and that thing gets a LOT of miles going from one end of the country to the other. the truckers seem to be sold on lucas...
A forum community dedicated to performance boat owners and enthusiasts. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more!