Best group III base stock money can buy? Must be from the new Petro Canada refinery, or those other guys in Baton Rouge La.
I wonder how Amsoil's group III products stack up against other III engine oils like Shell's Rotella, Chevron's 5W40 Delo, Pet-Can's Duron 5W40 and others?
The last time I bought Pet-Can's 5W40 duron, I paid just over $4.00 C$ per litre, or $2.80 USD/US quart. Chevron's Delo 5W40 is about 50 cents cheaper from the bulk dealer (case lots, pails, barrels or drums).
How much does the Amsoil product cost, is it CI-4/SL API certified, and if it costs more, is the price justifiable?