[svx_commuter]

Good thread this has been on my mind.

Have you used Marvel Mystry Oil in the gas tank? It says this can be done on the bottle. I have heard from an old German mechanic that using AFT in the gas tank is a good thing. It gives the engine more power (?) and helps it last longer.

Is MMo really tranny fluid? Is it the Dexron type or the type F? Does it matter?

Lastly, the Subaru XT-6 would get noisy lifters when the oil pump become worn. Something to keep in mind with high mileage (100k) engines.