Depending on what vintage of Jeep you have, you may have a new enough one that its an open element filter and with little effort pretty easy to examine or if older its a canister and cut it open. It would be interesting to see what if anything shows up on the filter media. What blows me away is watching some of these videos where the person says they are on the 4th oil change with R&P and there are still all sorts of pieces that look like flakes of build up that broke off inside the engine along with smaller particles layering up in the lower part of the filter pleats and the person is saying it looks a lot better than the first filters did ... like holy hell ! LOL.
I wish I could get my hands on HPL if I ever chose to try it out but that seems to be a no go here in Canada, I am only guessing that the product gets sucked up so quick in the states that they have no reason to even contemplate having dealers and shipping to another country and all the bs associated with that.
Why not run both, you ask? Well I am. R&P 5w30 plus a quart of HPL EC40 has been in my Jeep for around 1500 miles. I’m not really trying to solve any problems, no measurable consumption or issues. Just figured at over 100k, most of it probably on shelf oils save for my ownership period…might as well do a general cleanup. As I see it the products target two different areas. R&P seems to target pistons/ rings. The ester based HPL may be better at general varnish type cleanup. Will be back on Red Line for the next run but will pull a UOA on the cleanup cocktail and see how things are interacting.
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