Jimmbo,<br /> I put it in my boat about 6 weeks ago. Ran it a couple times, no complaints. My buddy uses it in his race car and loves it so I thought I'd give it a try.
Excellent oil. Great reputation. Not sure what you're running it in, but it will meet the spec of the Mercruiser's. <br /><br />Royal Purple also makes a SAE 40 and SAE 50 if you're looking for something with higher viscosity at higher temps.
