I see that the string is closed on rear main seal leaks. I think everybody got it wrong. Its dirt and oiling system contaminants that cause seal leaks. All it takes is a small amount of crud to get lodged under the lip of the seal and the process begins. Seal failure occurs in stages.
To the eye a poor seal shows up as moisture on the back of the oil pan, but no drops on the ground. Once you get to a seal dripping a puddle, your in pretty tough shape. Its is more likely to be poor maintainance than the oils fault.
To fix a leak with wrenches, first the contaminants must be cleaned out from between the seal and rotating shaft. The seal has likely been held in a position non condusive to working for some time. ARX works great for the cleaning process. Running a mineral oil for at least a 3000 mile interval is recommended for the seal to tighten down on the shaft. Mineral oil tends to have a shrinking or stiffening on the seal material and can help the polymer find its original memory and perform the sealing function.
My best advice is to start the procedure in stage one, not after its already dripping on the ground.
To the eye a poor seal shows up as moisture on the back of the oil pan, but no drops on the ground. Once you get to a seal dripping a puddle, your in pretty tough shape. Its is more likely to be poor maintainance than the oils fault.
To fix a leak with wrenches, first the contaminants must be cleaned out from between the seal and rotating shaft. The seal has likely been held in a position non condusive to working for some time. ARX works great for the cleaning process. Running a mineral oil for at least a 3000 mile interval is recommended for the seal to tighten down on the shaft. Mineral oil tends to have a shrinking or stiffening on the seal material and can help the polymer find its original memory and perform the sealing function.
My best advice is to start the procedure in stage one, not after its already dripping on the ground.
