That's quite a difference in additives! But I also see the HPGO has higher viscosity and flashpoint, so without being an oil engineer there really doesn't seem to be a way to say 1 is better than the other, unless you already know from extensive testing that your gearbox likes specific additives.
I really hope that this information eventually makes it way across to the resellers who still list the HPGO as Extra-S.
Gear oil performance? Take a look...
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Re: Gear oil performance? Take a look...
93 Touring Wagon (EJ20G 5spd Swap) -- Finally back and running strong as ever!
05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.
Re: Gear oil performance? Take a look...
Mike,
Thanks for sharing those oil analysis reports. I ended up picking up a 5 gallon bucket of the Xtra-S when Subarugenuineparts.com was clearing out their stock.
I've had good luck with the Xtra-S in all my subies. I'm not sure how the HPGO would work though.
Thanks for sharing those oil analysis reports. I ended up picking up a 5 gallon bucket of the Xtra-S when Subarugenuineparts.com was clearing out their stock.
I've had good luck with the Xtra-S in all my subies. I'm not sure how the HPGO would work though.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm