I did experience some slippage of gear / I guess my bike got spoiled by $20 -$35 a quart.. For 1/4 the price - I now can afford Shell Premium Gas prices... I use to drive 20+ miles just to save a $1 a gallon for gas. (Also, enjoyed the ride to finding these unknown -gas stations, but now that more bikers are getting killed from distracted drives - I stay off the road during heavy traffic)

My cummins has a PCV system which is simply a tube discharging to atmosphere around the oil pan. (04 common rail). There's no significant blowby - but after running the truck and coming to a stop - the smell of the offgassing engine oil is potent. Has that smell of gear oil. So when I come to a stop - I have to turn the HVAC off - otherwise it'll stink up the cab. A quick internet search found "RoSmella" as the common nickname... Ha ha! I hoped it would go away after a few miles - but at 2000 miles so far - it still stinks. I'll have to try something else next time. From a lubrication/functionality standpoint - it seems to be just fine.

I've been using T6 in my 2005 Kawasaki Vulcan 1500 after my first oil change, this oil takes the heat and keeps the inside of the motor spotless. No clutch slippage at all. The perfect oil weight to get into the tight clearances and reduce the 50w power and mileage rober.

Love this oil in my ATV. Turns smooth as silk. Some may question, why it's a diesel oil. Why you putting that in a quad. Trust me its JASO certified. Which is why I use it. Check it out and read up on all the reviews. YouTube has alot on this oil for motorcycle oil. I highly recommend

My '99 Honda Valkyrie motorcycle, '02 BMW 1150GS motorbike, '91 Lexus LS400 and '04 Dodge 3500 diesel, all use Rotella synthetic. It is so nice to keep one oil for everything and still find that excellent cold weather starting and hot summer oil pressures are still great. I recommend this product without reservation.

I use Rotella T6 in almost everything I own and have owned in the past. Its in my Toyota 4Runner, Its in my sons Kawasaki KX65 two-stroke, Its in my my Honda CRF450R, and also my CRF150R, Its in my lawnmower, and Its in my 4-stroke weed eater. It also does not cause any clutch slippage in wet clutches. I don't use it in my Tundra and Honda Odyssey because its not the right viscosity but I wish I could. I've used T6 exclusively for years in all my engines and never had a problem or any signs of wear.

I been running this in all my cars and trucks, ATV for many years. My 2007 Chevy Cobalt I drive the most and it has 160,000 miles and I been running this oil since 60,000 miles, starts great in Minnesota winters and I never replaced anything except brakes

Great product for cheap. I run it in a 2001 twin turbo Audi V6 - 170K miles change at 10K miles, 2002 Nissan Pathfinder - 180K miles - changed at 5K miles, BMW R1200GSA motorcycle - 133K miles - changed at 4K miles. This oils exceeds all manufacturer's specifications, never had any issues. Last time I opened the valve covers on the bike it looked brand new in there at over 100K miles

Been using for years in Motorcycle, gas and diesel motors. First used for my motorcycle then started using in everything else to keep it simple. Seems a waste for diesel w/ 3 mos. oil changes low hour tractor. I believe it is a highly engineered lubricant available in some form, throughout the world. (almost)

Using it in a semi tractor with cummins engine, with this oil and a bypass oil filter, i can extend the oil changes to 100,000 miles, well i do a oil test everytime i change bypass oil filter (every 10,000 miles), and so far the test returned showing oil in good condition.