Whaler Central - Boston Whaler Boat Information and Photos

Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: 1973, Cohassett II, 17'

Posted by BHowes on 06/28/16 - 1:50 PM

Dear Whaler Central Folks;

I recently purchased a new Tohatsu TLDI 2-Stroke outboard. The dealer installed it and filled it with Sierra TCW-3 direct injection oil.

The Sierra brand is difficult to obtain in our boating area, and I'd like to ask for your comments relative to using another, more easily available, premium TCW-3 oil such as Quicksilver.

I'm all ears.

Edited by BHowes on 06/28/16 - 1:53 PM

Posted by Phil T on 06/28/16 - 4:40 PM

The correct oil for the motor is TCW-3. Different companies brand it, market that their's is better. No matter.

Any brand will be acceptable as long as its the right grade.

Yamalube
Quicksilver
Sierra
Pennzoil
etc.

Price is what will be the difference.

Posted by Perichbrothers on 06/28/16 - 9:26 PM

We've been using quicksilver and our engines been holding up...
TP

Posted by BHowes on 06/30/16 - 5:04 AM

To All Who Responded:

Thank you for the information and insight.

Best regards.

Posted by Finnegan on 07/06/16 - 11:38 PM

The Tohatsu TLDI engines are Orbital's DFI technology, same as the Mercury Optimax. Accordingly, you should be using Mercury's Optimax DFI part synthetic oil, or as a backup, Mercury's Premium Plus. I would also assume that other brands that contain 25% synthetic would be acceptable, but I would not use the lower grade TCW-3 oils that do not contain any synthetic such as plain Mercury premium.

Posted by BSG on 07/08/16 - 7:33 AM

I have a 2014 Nissan 90 HP TLDI engine and I use Quicksilver Prem. Synthetic Direct Inject Oil per my engine installer and sales.