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Outboard oil

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zimnucks

Contributing Member
I service a variety of different Outboard four strokes and Im looking to get a drum of oil instead of buying Gallons , what would be a good universal oil to cover Honda , Mercury , Yamaha , Mercruiser ? I know each engine manufacturer has a specific recommended oil , to try to stock all these would bankrupt me , any ideas ?
 
I previously researched this issue. Here is something that I got off of Wikianswers...

"Toyota motor oil is made by Mobil. Mobil is using their Mobil Clean formula, not to be confused with Mobil Drive Clean 5000 which is higher priced. Mobil only packages their Mobil Clean in drums and bulk. Mobil's own literature terms this oil as "a entry level oil." The same Mobil oil is also the Honda factory oil and the GM Goodwrench oil."

I believe any 10W-30 (or 5W-30 for consistently colder weather) with an API certification of SG or higher will serve your needs UNLESS the manufacturer specifies a different weight or API certification minimum.The Mobil Clean formula discussed above would likely be as good as any.
 
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