Originally Posted By: Gary Allan
Sodium at 34 seems high also 10ppm was the norm.This vehicle may have other problems. Oil experiments should not be in it's future unless you fix them or you don't care about longevity.What did Terry say?
We're working on it. It's obvious that I've got some plumbing leak. Due to the level of aluminum, I think it's above the throttle body. They use some big plastic plenum (looks like a mushroom of a sort) on the 2.5 that they don't on the 4.0. It's a split piece, so it may not be sealing properly. All connections appear sound ..and a "spray" test showed no alteration to the idle. This OCI was mostly limited to this winter (road salt).
Tin was 14ppm where is this coming from?My other Jeep had a slight ingress of coolant,that is taken care of now,and the thicker oil held off high Fe numbers beautifully.IMO a thinner oil will perform allright in a perfect running engine but not in one that is sick somewhere....too much wear for me...sorry.
The tin is from Bruce. It's in the process/blend/mix/etc. Not from the engine. Sorry I didn't mention it as the source when I confirmed it with Bruce ..but...
Quote:
Tin 14/0 (probably an incidental add in the 5 gallon batch)
So ..my read is that I STILL have a airborne dirt issue ..and STILL have an ongoing fuel issue.
..but I had that with a 5w-40 HDEO too. So, it still comes down to I have a dirt issue and a fuel issue ...not a visc issue
Terry agrees.
Copy that.Personally I would silicon every fixture in the air delivery system ,that is clamped together, to the point of taking it off for service in one piece.Thats what I did after finding that there were gaps in my breather tubes at the clamps.I found the hard plastic tubes warped in weird places underneath where I can't see. I basically glued everything together and take if off as one big piece to service my filter/throttle-body.Try an "Engine Vac" at a reputable service garage to clean injectors and top end then go from there.I do this every 100,000km on my 4.0's.Something to ponder
