Features:

• Delivers superior protection
• Greatly reduces engine wear
• Provides protection upon initial startup
• Extends oil drain intervals
• Enhances performance of both gasoline and diesel engines

Editor Reviews:

Product Description:
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple Motor Oil with Synerlec additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Rating : - Noticeable difference in torque in my '02 Mini Cooper S with John Cooper Works.
I just started using Royal Purple in my Mini Cooper S with John Cooper Works (basically, the supercharged, supercharged Mini). I actually noticed a difference in torque off the line and squeeled the tires HARD in 2nd gear. Although I don't have all the equipment to register the difference in fuel conservation, the guages inside my Mini started registering higher, expected mileage ranges. I previously would see that mileage range at about 480 miles on a full tank of gas (Hwy), but after Royal Purple, I saw the range jump up to 505 at one time.

Like I said, I'm not an automotive expert, but from what it seems to me, the Royal Purple has made a difference.