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20 hp Kawasaki engine oil

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I'd probably go 10W-30 summer and 5W-30 winter. I think if you don't let any oil run too long, you would be fine. The oil change is probably more important than the oil weight. Just my $.02. Dave

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If you are using a good synthetic oil, there will be little or no difference in viscosity at operating temps between a 5w-30 and a 10w-30 oil. However, the 5w-30 oil will provide quicker lube during start-up and you can use it year around--------------which is nice if you don't run your tractors a lot. My tractors are lucky if they get 25 hrs of use each.

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I would think the oil spec would be on the dipstick cap with most modern engines and like cars have on their oil fill caps?

Here are some entertaining/informative oil technology videos:

Two cycle oil:

Tom (PK)

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