Discussion Starter · #1 ·
According to this service manual, transmission fluid level is to be checked when the fluid temperature is between 70 to 80C which is around 160-175F. It takes almost 30 minutes of driving for my transmission fluid to reach that temperature according to my OBD reader's logs. Do you all actually warm it up that much before checking the level with the HOT range on the dipstick? The engine reaches operating temp (~180F) in no time, maybe 5 minutes. It looks like some are suggesting just a 10 minute warm up which for my van it will only bring the trans fluid temp up to like 110F, which I think will put it in the "neither COLD nor HOT" range.