Nightmare....... two questions. First is how do you like the Mityvac 7400? I would like one but have heard stories of leaks happening around the pump handle. I'm also looking at the 7201. Second... twice a year ATF drain and fill? Might that be overkill? Just wondering if once every year would be more than plenty. [/quote]
I use synthetic oil, and ATF. I haven't experienced any air leaks, or if there is one , it sure hasn't affected the suction. You will hear/feel air when you first start pumping, then when the vacuum process takes place, you just sit back. Works better on the atf drain vs the oil, but that could be the design of my car.
Is it overkill for the average person to do a drain & fill every 5000 miles? Maybe so. I have a 2005 Ford Taurus, 70,000 miles. Most all of my miles are city driven , short trips.
Taurus's weak point are the tranny, however if you keep clean fluid, then 150k-200k is not out of the question.
Twice a year i do a drain, but this last time I noticed the fluid was still cherry red. Will probably back off to once a year. I used reg Mercon V until I had a clean tranny, then the last 3 times I have used Mobil1, Amsoil, and this time Redline.
The 7400 model has given me zero problems in the 2 years i have had it, and we are talking about 7 oil changes and 6 tranny drain & fills.
