Tartan 27' owner
Join Date: Jan 2008
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A good oil is Shell's Rotella T. It comes in SAE 30 or 15W-40. What weight oil does the manual say to use?
It is one of the few oils that is good for both compression and spark engines (dieseal & gas).
As for fuel additives (snake oils) there seems to be little proof of most of their claims. Using a biocide in diesel tanks may help if you have a bacteria problem in your fuel, which starts with water in the fuel.
Clean oil, clean fuel and clean filters are your friends.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
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