ND type motor oil? or just 10W30?

[Johnnyrock70]

I have a '49 Cub.
Can I just put straight 10W30 or does it have to be a ND oil???
THANKS - J.R. in VA

[VinceD]

Johnny, you will find there are many opinions on the subject of oil. I use 10W30 in my Cub, the same oil I use my other engines. So far so good. I'm sure other opinions and suggestions will be along shortly.

[Clem]

fresh clean oil.

[Mike in NC]

J.R.: I like 10-30 this time of year as the Cub turns over a little quicker when the temp drops below freezing.

[Arizona Mike]

Most Cubs were run on IH oil, straight 30 wt. Its still available from Case/IH and is called Lo Ash. Its even cheaper than most other oil these days and you can't go wrong there


I use Lo Ash in five of my six Cubs, and thet all say they are quite happy with the stuff.

[LiL' Red]

CaseIH low Ash 30 w would be my first choice, it has enough detergent about 10%, to keep things clean. I have used 10-30 but have had to prime the oil pump after a Cub has sat for long periods between starts. No matter what you decide on use detergent oil.

[ih-cubcadet-man]

i use low ash 30 wt ih oil