Originally Posted By: Thermo1223
Really so it boils down to condescending remarks now...seriously scruvy you should know better.
When multiple attempts to get someone to think critically about the subject at hand are rebuked, then sometimes condescending remarks are all that work.
Especially when someone is using different names, different locations and making virtually the same posts on different forums certainly smacks of being extremely disingenuous.
I'm not the only one on BITOG who suspects another poster is as described above or a clever troll... but as Ogden Nash said, "Too clever is dumb".
Originally Posted By: Thermo1223
FTR: I don't use Mobil TDT and I am pretty sure the car lived a long life on dealer oil before I got it, yet somehow it is ok.
Case in point, your cam either will go or won't and no oil can magically prevent it. To state your car is better off by not using a 505.01 oil(which are easy as heck to get) and everyone else is an idiot is really low. I use 505.01 and the cam was good before and still is now.
The cam could have been replaced before you got it, the dealership could have been using 5w40 505.01 oil, yours (like mine) could have been one of the 'good' ones... plenty of things could have happened.
I never said the cam would magickally live a wonderful happy long life on CJ-4 and not doing so makes someone an idiot, you've created a nice straw man argument there.
You know better. I frankly couldn't care less what oil anyone uses in their car. What I do care about is someone spreading falsehoods that all certified lubricants are the best lubricant for the engine when that is objectively not the case with this particular engine family!
What I
did say is that the vast majority of folks running CJ-4 5w40 lubricants what bother to do UOAs show
lower wear rates (as expressed in wear metal ppm/distance) and overall report
longer cam life than those running 505.01/506.01/507.00 certified lubricants of any viscosity (even moreso as most of those are all 5w30 or 0w30, which has been shown to truly be Bad News Bears for a PD cam). I was fat and happy running all of the VW spec oils as above until I did some reading, quite a lot of critical thinking and dug down deep into the looming problem. Only then did I prove to myself with UOAs on my own car that CJ-4 lubricants (Schaeffer 9000 5w40) gave vastly lower rates of wear metal generation than the VW-spec lubricants I used previously.
The cam was poorly engineered by VW; changing the lubricant
can lead to a much longer time before failure but nothing will prevent it... eventually all PD cams will need replacing.
I've always said 5w40 505.01 lubes are much better than the vast majority of other 505.01 oils which are 5w30 now, but the overwhelming evidence is that 5w40 CJ-4 lubricants work better for longer than the VW certified ones. One may choose not to believe it, but that's just an individual's choice to be obstinant in the matter... especially once the location of tomes of data to this end was pointed out to them.
If you're happy running Mobil 1 ESP M 5w40 (not 505.01 certified), Valvoline Synpower 5w40 (505.01 certified) or LubroMoly whatever, then I'm happy for you. Most of those would be good choices in my considerably biased opinion.
Lest you think I get free TDT and kickbacks from Schaeffer on my mighty throne of CJ-4, I'm currently running a frankenblend of 3 quarts Schaeffer 9000, a quart of Mobil 1 TDT, a quart of Castrol SLX Professional OE 5w30 (505.01 certified), a quart of Castrol TXT 5w40 (505.01 certified) and half a tin of Lubro-Moly MoS2. Certainly less optimal than just the Schaffer or TDT alone, but I'm only running it to use these odds & sods up before switching to my stash of TDT (which I only have as my local AutoZone priced it at $3.99/quart and kept it there for months)... but I won't bother doing a UOA on this stuff or running it out past 16k km.
