Forum:
I understand that Fourtraks due to the old technology of their engine design are not suited to synthetic oils. Our trusty Fourtrak has always had mineral oil at changes but I noticed when buying oil for a change recently that the own brand supermarket product that I have used previously is now a semi-synthetic.
Should this also be avoided in a Fourtrak?
Semi is fine, actually this
Semi is fine, actually this is the really trick oil as it can work in really fine films for new engines, or with thick films for old engine designed for mineral oils.
Suggest putting in an engine cleaner such as a fuel injection system cleaner first as this will clean the engine and prevent any damage from the semi cleaning the engine as cleaner does it slowly and is cheap insurance.
Thanks Assassin, helpful
Thanks Assassin, helpful advice as always.
David T