Has anyone used this oil in their boat engines? I ran across it in Walmart for ~$25/gallon. I have been using Mobil 1 V-Twin 20W-50 oil for the past two seasons with no issues. However, it runs about $10/quart. I am thinking about switching to the Quicksilver oil. I appreciate the feedback.

i ride bikes, alot. the only difference (AFAIK) in motorcycle oil is that it does NOT have the friction modifiers used in auto oil. this is because of the wet clutch in most bikes, slick oil would glaze up your clutches real quick. for my bikes, i actually use RotellaT diesel oil for the same reason.

i dunno how that applies to your question, just information.

Mobil one says that they can run more friction modifiers in Motorcycle oil as there are no cat converters to be damaged by same. That will change. However the the Mobil 1 motorcycle oils are amongst the best lubricants for boats, Mobil 1 agrees that they are very suited for the application. I run the racing 4T in my supercharged jetskis and BBC powered Jet Boat. The V-twin 20/50 in my Boat due to they greater tolerances and heat cycles..

As far as the quicksilver goes, I would suggest an oil analysis compared to the v-twin.

Also motor oil that had Moly in it that was used for motorcycles would see clutch slippage. I have not kept up with that as of late so that might have changed because of the current materials they are making the clutch packs out of. Anyways just saying for info as well.

I also use Monil 1 V Twin, great oil and among the best. Funny thing though, people all have their favorites...like blondes or brunettes.

i prefur both mobil on v twin here also

I run valvoline vr1 20w 50. It has a high zddp content, which will damage catalysts, but is great for your engine. I've personally had great luck with it, using it in racing applications where the soft rings get swapped a lot, it's nice to see bearings and cams that look no different than when you first assembled the parts.

You should always use motorcycle racing oil. It will make the boat do wheelies!!!

Used the v-twin for 2 years , didnt burn any oil and the season and when i changed it the oil still looked good, got a case it for 2.00 a quart on close out