630 Oil?

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What Grade do You use nowadays in the 630 gas?

 

[Carlyle hoffman]

Any thing you want, todays oils are better than anything that came with the tractor--10w30field work in summer 15w40 during winter spreading MANURE and fire wood, for as long as I can remember

 

[jdjerry]

I use 15/40 year around.

 

[ArnieinChesterfieldVa]

John Deere oil is one of the few things reasonably priced at the dealer. You could just go there and ask what viscosity they suggest and get your oil there.
Arnie