Mobil 1 extended performance is gone?
#17
#19
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From: milpitas
Car Info: 08 impreza OBS
Originally Posted by Heedz
Try rotella t6 amazing stuff, I usually use napa golds or wix (same thing.)
#20
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From: East Bay / Pomona
Car Info: '02 PSM WRX
Don't get me wrong, I use RT6 in my WRX, but again it's a turbo application.
Just my .02
#23
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From: milpitas
Car Info: 08 impreza OBS
Originally Posted by STi-owns-evo
Just as a warning, RT6 may be a little thick for your application. Notice most, if not all, who are recommending RT6 have a turbo. The main reason why people avoid M1 is due to it shearing down to too thin of an oil because of the heat from the turbo. The two main oils Subaru WRX owners use, RT6 and GC, is because they're thicker and are more resistant to shearing to too thin of an oil.
Don't get me wrong, I use RT6 in my WRX, but again it's a turbo application.
Just my .02
And i only lost a quart of oil in about 3500 miles, so i probably don't need a thicker oil
Last edited by Navysesal; 01-01-2013 at 09:23 AM.
#24
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From: East Bay / Pomona
Car Info: '02 PSM WRX
By your logic, if I moved to an even hotter place, should I be running a 5w-50? You make it sound like it's constantly over 100 degrees in CA, and even then, it doesn't make a significant difference as the motor is producing most of the heat in the oil.
Look at these past weeks, it's hit around 30 if not lower in many areas in NorCal and SoCal. Engine wear is normally the worst on a cold start up because oil needs to heat up to be at operating temps and viscosity. Hence you don't want to run a thicker oil than needed in the car.
#25
Yeah even my wife's civic on extended life Mobil 1 needed to be topped off regularly. Switched to regular synth Mobil 1, problem gone.
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