Originally Posted By: Loobed
Originally Posted By: OVERK1LL
.... I'd recommend
Mobil 1 0w40 for it.
A WWII Willy's and a 2009 BMW have a lot in common
I assume it is a 4 cylinder?
I suggest 10W-40 conventional or 15w40 Diesel oil. Maybe switch to 5W-40 Rotella after then engine is clean. But all it really needs is the 15w40 diesel oil and a lot of filters to catch all the crud that will come from the detergent oil. If it is hard to start, he should check the size of the battery cable to the starter and the CC Amps of battery. Another thing is to just use starting fluid when it is cold. It works like magic. Just open the hood and spray into the air filter opening, then start.
HA HA HA.
Comical. I'm sorry, how many 1930's, 40's and 50's engines do you have experience with? We've owned about 50 or so..... And this engine has a lot in common with a diesel too right? Yeah, that makes your suggestion MUCH more valid...... Just because you don't agree with my suggestion doesn't make a sarcastic stab at me any more acceptable.
I've run Mobil 1 5w30 in a 425HP 312 Interceptor, as well as a HOST of other oils in engines ranging from a 1945 Chris-Craft I6, Gray I4, 9N tractor, Chris-Craft I4, Chrysler I6...etc.
We never had any issues. For the longest time my grandfather ran (similar to this gentleman) non-detergent oils in most of these things. Switching to just a multi-grade conventional yielded some pretty filthy oil in a VERY short period of time. VERY SHORT. Many of these engines had no filters, and so it was run it, dump the sump, and re-fill. Run it, and repeat. Until the oil was clean. He used to buy skids of whatever was on sale (one year it was Castrol GTX, the next it was Valvoline sort of thing) and it would typically last us a summer or two in the boats.
Mobil 1 0w40 is also diesel rated (not that this is necessary, but it has a lot of zinc, which I'm sure would be beneficial). It will also likely do the most cleaning. It is also closer in weight to the 30wt that he HAS been running since he acquired the vehicle. It will also have superior cold performance if that is in fact his issue. The ONLY issue he is likely to encounter is some VERY dirty filters in VERY short order and that will be the case with ANY good oil, including 15w40, 5w40 or the 0w40.
I would normally suggest Mobil 1 Turbo Diesel Truck 5w40/Mobil Delvac 1 5w40, but since the thing is already being run on a 30wt and I am unsure as to how going up a grade into a SOLID 40w territory is going to affect this engine (and neither do you) if it has never been run on it before. Since we KNOW Mobil 1 0w40 is a LIGHT 40w, and much closer to a 30W oil than the other 40's being mentioned, AND he wants superior winter performance (which it will provide with it's -54C pour point) I see it as being a logical choice.
BUT
Drew made a good point about it causing potential leaks. And this very well may be the case. I think the only thing I can add to that is that if that is going to happen, it is probably going to happen with ANY modern oil that gets put in the sump. I know that the gunk accrued in some of our old monsters was rather startling. The detergents in pretty much any modern oil are going to start breaking this up and that is why cycling the filters frequently until it clears up is going to be necessary.
On another point: Ether is very hard on an engine. I would NEVER recommend starter fluid to ANYBODY.
