Boat Engine Oil

(loffgren) · (loffgren) **Join Date: Apr 2006** 04-22-2008, 10:37 AM

What type are you using, Synthetic / Manufacturer

(lovin_the_wake)

I use Motorcraft 15/40 it's a synthetic blend it's not full synthetic

(05mobiuslsv) · (05mobiuslsv) **Join Date: Apr 2006** 04-22-2008, 10:53 AM

Delo 400.

(tomcat22) · (tomcat22) **Join Date: Jun 2007** 04-22-2008, 10:58 AM

Shell rotella 15w-40

(rallyart) · (rallyart) **Join Date: Nov 2006** 04-22-2008, 10:59 AM

I use Mobil 1 5w-40. Don't put pure synthetic in until 20 hours or more. It slows down the break in.

(turbonine) · (turbonine) **Join Date: Oct 2005** 04-22-2008, 12:02 PM

Rotella 15W-40 every 50 hours on my Indmar.

(mammoth) · (mammoth) **Join Date: Apr 2005** 04-22-2008, 12:12 PM

Rotella T

(mastercraft1995)

Pennzoil 15w-40.

(hatepain) · (hatepain) **Join Date: Aug 2006** 04-22-2008, 12:56 PM

Mobile 1 5W-40

(denverd1)

tossed a camshaft in over the winter. Broken-in, but I still need to run 20/50 w/ zinc for 3 changes, then 20/50 after that.

(hayes) · (hayes) **Join Date: Aug 2007** 04-22-2008, 6:02 PM

Mobil1 15-50 Synthetic

(lovin_the_wake)

Nacho, I forgot to ask How that turned out did it make a noticeable difference ?

(trdon) · (trdon) **Join Date: Sep 2007** 04-22-2008, 8:16 PM

15-40 castrol tection(sp?) extra deisel oil with Zinc. Its the only zinc oil in 15 40 I could find locally.

(denverd1)

Monty, it's turning out great! still haven't fired her up yet. getting a few kinks worked out. It's all reassembled, except the carb and fuel line. Just been too busy to put any real time into it. i'll get it fired this weekend, the start working on jet sizes.

(olskooltige) · (olskooltige) **Join Date: Mar 2007** 04-23-2008, 7:47 AM

Schaeffer's Moly straight 40W racing blend.