lpg engine oils. Straight weight and temp.

[R Wyler]

I think I can get my 705 started I believe I had the plug wires in the wrong places on the cap by one hole. Anyhow I put straight 30wt in it and of course now the filters are full. It will only be high 30s tomorrow and maybe mid to high 50s later this week. Would 20wt be better? I have read that heavy oil can actually increase the bearing clearance. I am so anxious to hear this thing run. What do you guys use in these in cooler temps?
 

[casecollectorsc]

Up here in SD -20 below sometimes, 15/40 from Cenex. Before anybody badmouths it, I've been using it in everything since the early 80's no problem.
 

[M 5 Jack]

We use 15-40 on our Diesel and 10w-30 on our gas tractors,I have not bought an old tractor that was not neglected somewhere.We forgot the air cleaner on our ZB.It did not quite act right,
pulled it off it completely pluged.I know nothing
about LP but what really gives gray hairs is two or more little things.Made in china products will
drive nuts.
 

[R Wyler]

I use 15-40 in the M Farmall and straight 30 non detergent in the 930 lpg but it is only run in the hot summer and fall except for top dressing wheatin the spring, "which might not be done this year" I might put straight 20 in if I can find some. I am just worried about that 30 being too heavy right now. china must be the largest manufacturing nation on earth now..
 

[R Wyler]

I went to using straight 30 in my Case but I only use it in warm and hot weather. I know the multi grade and straight weight can lead to serious debate.
 

[rustred]

no such thing as heavy oil or any oil increasing brg.clearance. brg clearance is increased with the normal wear of the brgs. with crank or cam wear also. the brg. clearance would increase due to lack of oil. you are fine with that 30 wt in that temp. wont find any gain from 30 wt to 20 wt in high 30's temp.
 

[R Wyler]

That is good to know. I really did not want to drain the new oil out. I will go to non detergent after I get some hours on it. I feel like it helps clean up the engine. especially considering the crude dirt floor shop I have to work on engines in..
 

[WGM]

Only fools use non detergent oils
 

[oleclint]

I use strait 30wt in our tractors all year.Really have had no problems with them. In very cold weather . I let them warm up for a few min. before working them.
Make sure you oil is made for use in L P G engines.
I do not know if "Low ash" oil is made any more . It was refined for L P G engines.
Where are you located at? And how cold are your winters? I am in central Ok. clint
 

[R Wyler]

I am also in Okla, north central. I have been using 30wt non detergent in my 930 lp. I have thought about going to the Case No. 1 engine oil.