I just had Amsoil Synthetic 80W90 done to the transmission, and when it's cold...the car will hardly engage a gear, it's waaay too harsh. Shifting from 1st to 2nd, you can feel the transmission doesn't want to let go of the gear (I guess this is the "nibble" effect?).
Once it warms up (about 5 minutes or so), it feels absolutely great and buttery. But this is definitely not a cold weather weight. I wish I had known that before telling my shop to go ahead. I am moving to Florida in 2 months, so perhaps I should just wait it out?
Perhaps pouring a little of the Amsoil out and mixing with OEM would make this a more optimal weight for colder days?
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