Was nosing around under the 4runner yesterday and thought about swapping to synthetic and doing the DIY "flush" when I change over. I know there is a writeup on pulling a cooling line and running the old fluid into a bucket while periodically adding fluid and letting the tranny do the work.
I see two rubber lines going into the bottom of the radiator. I assume both of those are tranny lines. Which one did you pull off, and I guess you just run the hose into the bucket? Does anything come out of the rad fitting or would you have suction there? I guess if fluid is pouring out of the rubber line you would still have a bit of old fluid in the radiator line and the other line from radiator to transmission, right?
I think I'm going to switch to Mobil 1 after seeing more and more people who swear by the stuff. If I'm going to switch I think I'd want to get all of the old Dexron out of there. They're supposed to be compatible, but I'd rather get all syn in there.
I see two rubber lines going into the bottom of the radiator. I assume both of those are tranny lines. Which one did you pull off, and I guess you just run the hose into the bucket? Does anything come out of the rad fitting or would you have suction there? I guess if fluid is pouring out of the rubber line you would still have a bit of old fluid in the radiator line and the other line from radiator to transmission, right?
I think I'm going to switch to Mobil 1 after seeing more and more people who swear by the stuff. If I'm going to switch I think I'd want to get all of the old Dexron out of there. They're supposed to be compatible, but I'd rather get all syn in there.
