Feirstein Posted September 4, 2013 Report Share Posted September 4, 2013 (edited) At 112,000 miles I discovered a drip of thick lube under my car where the PTU is located. My mechanic and I discovered that it was coming out of the top of the PTU's vent. As per instructions printed on this site we drilled a drain hole at the bottom of the PTU and ran a sequence of motor oil and kerosene through the unit 5 times and blew air through the drain hole after we saturated the outside top of the vent with carb cleaner. We then ran Mobil 1 75W 140 through it twice. As part of each flush we ran the motor in gear, up on the lift, up to about 80 mph for about 30 sec. It took about 3 hours and cost me about $225.00, including the lube and the kerosene. It took about 12-14 oz. of lube. I think I will change it out every year from now on. Edited September 4, 2013 by Feirstein 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted September 4, 2013 Report Share Posted September 4, 2013 Nice! I assume the instructions you refer to are from the natrix? Gutsy move, and hope it works out longterm for you. Quote Link to comment Share on other sites More sharing options...
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