1990 mariner 115hp.. choice of oil??

Joined
Jun 14, 2010
Messages
7
i bought a new boat and it has a 1990 mariner 115hp its oil injected and i was just wondering what kind of oil would be the best choice or would any old wal mart marine oil thats for oil injected work?
 

jaredlucky16

Cadet
Joined
Jul 20, 2011
Messages
7
Re: 1990 mariner 115hp.. choice of oil??

I run quicksilver premium. Not to expensive i think its $22 for a gallon. Do NOT run pennzoil
 

CharlieB

Vice Admiral
Joined
Apr 10, 2007
Messages
5,617
Re: 1990 mariner 115hp.. choice of oil??

Any two stoke oil rated TCW-3 should be fine.

However, once you decide on a brand, STAY WITH IT. Not all oils are created equal, each manufacturer has their own specific formula of additives to the oil to make it perform and pass the rigid guideline for certification as TCW-3. These additives do not always play well together. Mixing oils of different brands may cause an amount of thickening of some of the oil which could possibly restrict oil flow enough to damage your motor.

Even Pennzoil synthetic is a fine oil.

Direct injected EFI motors can be a bit more 'picky' about their oil, some must have the factory specified oil.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,036
Re: 1990 mariner 115hp.. choice of oil??

I like the Wallyworld stuff.....$12/Gal
 
Top