Quote:
Originally Posted by Tannaton
No….
3309 was used on the earlier models, the change to 3324 was for economy reasons and longer life (3324 is fully synthetic).
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Other opinions are, I know available*, but OP should do his own DD on this, as I suggested. There are full synth 3309s, for instance (Mannol, off the top of my head).
*There are those who believe that 3309 is forward compatible, but 3324 isn't reverse compatible.