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T O P I C R E V I E W
vdotmatrix
Posted - 07/26/2019 : 06:26:21 They were out of regular marine 10-40w motor oil at west marine and i picked up the blended... will have to change oil out anyway on the new motor..
Any downsides to using a blend?
4 L A T E S T R E P L I E S (Newest First)
islander
Posted - 07/26/2019 : 17:22:53 If it's an older engine and you always used conventional oil then stay with that. Some say changing an older engine to synthetic could cause oil leaks due to it's cleaning ability. I don't know how true that is.
GaryB
Posted - 07/26/2019 : 16:09:53 You shouldn't use synthetic oil in any engine until it's completely broken-in (unless the owners manual says it's OK). If you use it too early there's a possibility the rings will never seat and you will have higher than normal oil consumption.
glivs
Posted - 07/26/2019 : 12:39:26 My Mercury Owners Manual does not recommend the use of synthetic oil...but I don't recall the explanation if any. ??? I'll check when I get a chance.
islander
Posted - 07/26/2019 : 06:56:19 No downside but since it uses a quart or less I always use full synthetic. Also it doesn't have to be bought at a marine store. You can buy oil from an auto parts store as long as the oil meets the viscosity and the API numbers required by the engine.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.