by Ed
(charles City VA 23030)

boat/motor about 5 yrs old. 18 1/2 Lowe with 115 outboard jet. Used about 6 times. Original oil is still in Motor. I want to use the best synthetic quicksilver. When I purchased the rig I bought 25w40 semi synthetic oil for first oil change. Is this oil still good after sitting 5 years in original containers ? Is 25w40 the correct oil for my area ? zip code 23030, Charles city VA. Temperature range 30 F to 100 f.

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Jan 08, 2021

by: John

Oil doesn't usually age if clean and sealed and no water or moisture in it. Go to the Mercury website for all info on oils and it hasn't anything to do with ZIP codes. http://www.mercurymarine.staging.yartdigital.com/home/service-warranty/service-maintenance/fuel-oils-recommendations-outboards.aspx

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