Originally Posted by boczo777
Extra-S is just oem sub right??
what is weight of it??
i assume its 75w-90 ....
Sort of, Extra-S is a Subaru product but it is certainly not the dealer fill oil (I'd only believe them if I saw them open a new drum and pour directly into my car). Extra-S is 75W90 as any 10 second Google search will find for you. Extra-S is non-synthetic that performs well with the 6MT syncros in most weather conditions.
Originally Posted by Uncle Scotty
...the dealer is an idiot just like 99% are.....and yeah....you may wanna use a racing fluid for the track the extra s may work but wont last long....and if ya gonna track the car, plan to change all the fluids a LOT more regularly
As he noted, servere use will certainly use up the additive goodness in any oil, decreased drain intervales is a must if you do a good deal of track use. I also agree that the dealer is a moron who has probably never read the service manual.
v - As in "Subaru Extra 80w90" and "Subaru Extra S 75w90"? i've not looked that much into it, so I have only bought Extra-S 75w90 that is imported from Japan in the larger pails.