a little akward question, don't know how to explain it: is the limited slip differential and visco coupling a closed unit within drivetrain or not?
the main thing i ask is because i plan to change differential oil in my manual forester (2010, with 30.000miles) - oil in front diff and gearbox (one unit for oilchange, approx.1 gallon of oil) and oil in rear diff (approx 0.8 litres of oil).
plan is to use 75w90 oil for both, but i have seen some types of oil say "for vehicles that do not use limited slip system", i.e. motul gear 300 , motul motylgearand .
on the other hand , i have eneos premium multi gear and mobil 1 shc that do not have this warning.
all oils are 75w90 grade.
which one to use or i shouldn't worry since it doesn't matter (if those systems are closed units)?
thanks:Banane35:
the main thing i ask is because i plan to change differential oil in my manual forester (2010, with 30.000miles) - oil in front diff and gearbox (one unit for oilchange, approx.1 gallon of oil) and oil in rear diff (approx 0.8 litres of oil).
plan is to use 75w90 oil for both, but i have seen some types of oil say "for vehicles that do not use limited slip system", i.e. motul gear 300 , motul motylgearand .
on the other hand , i have eneos premium multi gear and mobil 1 shc that do not have this warning.
all oils are 75w90 grade.
which one to use or i shouldn't worry since it doesn't matter (if those systems are closed units)?
thanks:Banane35: