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SportTrac Discussion
Engine & Drivetrain
Rear Main Engine Seal
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<blockquote data-quote="swshawaii" data-source="post: 1051901" data-attributes="member: 67547"><p>My 2005 4.0L has a similar RMS engine leak @ 89,000 miles. Loses less than one half pint (8 ounces) in between twelve month oil changes. Reason I don't change oil at the recommended 6 month or 3000 mile whichever comes first interval is because I sent a 12 month old, 4000 mile oil sample to Blackstone Labs for analysis and EVERYTHING checked out OK with several months of oil life remaining. I only use time proven Motorcraft FL-820S filters. The positive Blackstone Labs results may have something to do with our usually mild climate and humidity in Hawaii. I've been living with a small rear main seal oil leak over three years with an occasional drip on the front cat that stinks but quickly burns off. My dilemma is a $20 rear main seal replacement + over $1000 in shop labor cost or continue with this annoyance until it becomes a fire hazard. I have tried Bars Leak and Blue Devil RMS liquid seal repair that both sealed well initially, but the drips reappeared on the bottom of the bell housing after less than one month.</p></blockquote><p></p>
[QUOTE="swshawaii, post: 1051901, member: 67547"] My 2005 4.0L has a similar RMS engine leak @ 89,000 miles. Loses less than one half pint (8 ounces) in between twelve month oil changes. Reason I don't change oil at the recommended 6 month or 3000 mile whichever comes first interval is because I sent a 12 month old, 4000 mile oil sample to Blackstone Labs for analysis and EVERYTHING checked out OK with several months of oil life remaining. I only use time proven Motorcraft FL-820S filters. The positive Blackstone Labs results may have something to do with our usually mild climate and humidity in Hawaii. I've been living with a small rear main seal oil leak over three years with an occasional drip on the front cat that stinks but quickly burns off. My dilemma is a $20 rear main seal replacement + over $1000 in shop labor cost or continue with this annoyance until it becomes a fire hazard. I have tried Bars Leak and Blue Devil RMS liquid seal repair that both sealed well initially, but the drips reappeared on the bottom of the bell housing after less than one month. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Rear Main Engine Seal
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