What weight oil should i use in my MF35 tractor? (3 cyl. perkins diesel) i live in florida where its hot?

15W40 is OK. Ask for Dello brand. Excellent oil.What weight oil should i use in my MF35 tractor? (3 cyl. perkins diesel) i live in florida where its hot?
30 weight?What weight oil should i use in my MF35 tractor? (3 cyl. perkins diesel) i live in florida where its hot?
Best to consult Perkins. If you don't have access to a manual, any 15W-40 oil will do fine. Big rigs get over a million miles on it, and Ford Powerstrokes get over 300,000 regularly.
15w30 for most deisels

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