Originally Posted By: mene
I do get the ACD for little over $7.00 and we have a distributor in the city so no extra for shipping and last time I checked M1 in Wallyworld it was almost $7 for 0w40 and still short on ZDDP, the 15W50 is available only at parts stores for about $12; all the other inexpensive synth's are way low in ZDDP. But I'm open to suggestions so please don't hesitate and post them, to all of you guys.
Well, I wouldn't call the 50 weight "too thick" as a blanket statement. It certainly might be thicker than optimal, but that's neither here nor there. The engine has lasted forever and a day, and that's good enough for me.
If you want something higher in ZDDP that isn't totally outrageous on price or difficult to obtain, you could consider something like QS Defy, other HM oils, or (if it were me) an HDEO in an appropriate grade. The latter are available in all kinds of grades, synthetic and conventional, and will have plenty of ZDDP. The other advantage is they are readily available in 5 gallon pails, which comes in handy for frequent oil changes.
If you want cheap but more than adequate, any 15w-40 or 10w-30 HDEO will do. If you want to spend a bit more, there are plenty of synthetic HDEO options in 5w-40 and 0w-40. They will be plenty thick at operating temperatures, without being as thick as a 15w-40 or 20w-50 at startup.