Originally Posted By: Garak
Originally Posted By: 901Memphis
Yes so it's exactly as they state and purposely under treated I imagine if the old api rating means anything. I'm still interested in a VOA
I'm beginning to question my sanity, and that of the oil companies. One of us is nuts, but I'm not sure which, yet. Why does a high mileage type of oil absolutely have to be so out of spec as to be useless (like this stuff, with a terribly dated spec and purposely under treated, and with a virtually useless SAE grade), or be SN/GF-5 like everything else off the shelf, or have to be a boutique synthetic at prices far too high for an older flat tappet engine?
In this case, I'm not exactly sure what an under treated 20w-50 is supposed to accomplish, LM or not. What will this product do that a ND SAE 30 can't do? For that matter, what will this product do that any other 20w-50 on the shelf cannot do?
...and this is exactly why i came here for help. I was looking into oils for my 88 535i that has the need for ZDDP. All these terms are new to me, forgive me for that..flat tappet..zddp..moly etc etc. But im not new to automobiles at all. i just always used the manufacturers suggestions.
I wrongly used the "wrong" oil in my first oil service upon purchase of my car a few months back. Too light for the temp range of NYC. So i started checking out other oils and came across the whole thing about flat tappet oil's.
I contacted LM because i know their supplier would get me some if i needed it. Then i got their email. And then I saw no problem using M1 15w50, but then read about low Zddp. I thought, hmm..Castrol GTX 20w50, add a little zddp, or Moly (MOS2,STP or ZDDP+). Then i read how GTX was no longer the true GTX of the days of old.
I Finally said Screw it, got a hold of some VR1 20w50 from my old auto parts store at a good price and bought 12 bottles.
