" From: Brien Tourville <hh7x@xxxxxxxxxxx> " " " " " " " " Run a 'Diesel' rated Synthetic like " Mobil '1' 'Delvac'. " " Google Diesel engine oils - plenty of " coverage as to why - . " " Long and short of it is: " " The EPA wanted the Oil companies to lose " their 'wear protection' package - Moly " and some other things that prevent metal " to metal contact - because - if your engine " was burning oil - it would decrease the " effectivness of the Catalytic Convertor. " " The Truckers threatened a shut down strike " since their operating costs and down times " from Engine damage / failures would be huge. " " So - the only Oils that still contain an " Anti-Wear package are the Diesel Rated oils. not all diesel oils, though. on the back of every quart you'll find a little 'api rated' logo; these days it'll probably say 'sm'. spark rated oils rated 'si' or earlier - which are hard but not impossible to find - still have the high level wear protection package. diesel oils are widely available with two ratings; 'cj' [which does -not- mean 'for jeeps' ;^>] has reduced antiwear additives, and 'ci' which like spark oils still has high levels. check the api rating logo when you buy your oil. [nb. 'api' is the american petroleum institute] you can also get gm engine oil supplement, which is concentrated antiwear additives. i'm going to. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list