Questions for Valvoline MaxLife users. Put MaxLife red bottle 5w/20 into my 2005 Ford Escape 3.0 to try to help an oil leak from the timing chain cover ($$$). The leak became lots worse after a run of Pennzoil Ultra (maybe this stuff really is different!) and MaxLife seems to have helped a lot. I'm wondering now if the improvement is more related to going from a GTL synthetic to a more-conventional oil.
In any event, two things about MaxLife concern me a bit:
Some seem to think that MaxLife will condition or swell all seals, whether they need it or not and the result could eventually be more leaks as otherwise good seals are compromised. Has anyone seen this?
Some seem to think once seals have been conditioned with MaxLife, going back to a conventional, non-HM oil will result in shrinking seals and again, more leaks than there were at the beginning. Again, has anyone seen this?
MaxLife seems to be a pretty robust, readily available oil that lots of people use. The car in question has only 70,000 miles though, and I would like to be sure I've chosen the right path.
Thanks!
In any event, two things about MaxLife concern me a bit:
Some seem to think that MaxLife will condition or swell all seals, whether they need it or not and the result could eventually be more leaks as otherwise good seals are compromised. Has anyone seen this?
Some seem to think once seals have been conditioned with MaxLife, going back to a conventional, non-HM oil will result in shrinking seals and again, more leaks than there were at the beginning. Again, has anyone seen this?
MaxLife seems to be a pretty robust, readily available oil that lots of people use. The car in question has only 70,000 miles though, and I would like to be sure I've chosen the right path.
Thanks!