Post by: Hi-Liter on July 22, 2014, 03:59:34 PM
Post by: Rick on July 22, 2014, 08:11:15 PM
Thats a handful of Yamahas and a couple Suzukis.
Post by: L-ofalab on July 22, 2014, 08:25:32 PM
Post by: Rick on July 22, 2014, 08:31:25 PM
I thought Delo was for diesel engines, I run Delo 400 in my Cummins. Rotella is also made for diesels. Why are you using oil made for diesels? Is that common?
Delo and Rotella are both dual rated (gas or diesel) heavy duty engine oils.
As long as they meet the manufacturers viscosity requirements, They're perfect in a four stroke application.
Post by: Tman on July 22, 2014, 08:34:54 PM
Post by: L-ofalab on July 22, 2014, 08:41:46 PM
May I use Automotive Oils in my four-stroke Yamaha Outboard?
No. Automotive oils are not designed for the operating conditions four-stroke outboard motors face, particularly moisture, cooler operating temperatures, and extended full-throttle operation under load. Oils for your car do not contain, for example, sufficient quantities of the superior rust and corrosion-resistant additives found in quality FC-W™ oil. Oil with the FC-W™ rating from the NMMA® has been specifically formulated for the tough marine environment. Yamalube® 4-M FC-W™ meets or exceeds all FC-W™ requirements
Post by: Rick on July 22, 2014, 08:53:31 PM
This is what the Yamaha site says-
May I use Automotive Oils in my four-stroke Yamaha Outboard?
No. Automotive oils are not designed for the operating conditions four-stroke outboard motors face, particularly moisture, cooler operating temperatures, and extended full-throttle operation under load. Oils for your car do not contain, for example, sufficient quantities of the superior rust and corrosion-resistant additives found in quality FC-W™ oil. Oil with the FC-W™ rating from the NMMA® has been specifically formulated for the tough marine environment. Yamalube® 4-M FC-W™ meets or exceeds all FC-W™ requirements
Imagine that...Yamaha wants you to use an oil with their name on it. :chuckle:
I wonder if it has anything to do with them buying it for $1 a qt and selling it to the consumer for $10?
I've seen oil analysis from virgin and used "Yamaha" oil. Its nothing special.
The F300 on the back of my boat runs about $25K. If I didn't think Rotella was appropriate ,I wouldn't be using it.