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Greater Wear Protection
Synerlec® additive technology forms a tough, tenacious film on all metal surfaces virtually eliminating engine wear.
Greatly Extends Oil Drain Intervals
Max-Cycle® is extremely oxidation stable and stands up to the heat that causes oils to thicken, form lacquer and varnish deposits, lose its lubricity and shorten the life of both the oil and the engine.
Increases Horsepower
Max-Cycle® increases horsepower and torque over conventional oils.
Increases Torque
Max-Cycle® increases horsepower and torque over conventional oils.
Provides Superior Rust / Corrosion Protection
Synerlec® additive technology protects during normal and severe operation and acts as a preservative oil during shutdown.
Saves Fuel
Max-Cycle's® low coefficient of friction routinely produces meaningful improvements in fuel economy.
Reduces Exhaust Emissions
Max-Cycle® provides a superior seal between the piston ring and cylinder wall, which reduces blow-by, improves combustion efficiency and measurably reduces harmful emissions.
Keeps Engines Clean
Max-Cycle's® natural solvency cleans deposits left by old oils and keeps engines clean.
Mates Engine Parts
Synerlec® additive technology allows engine parts to perfectly mate. Mated parts allow engines to run smoother with increased efficiency for maximum performance.
Will Not Harm Seals
Max-Cycle® has the same excellent seal compatibility as mineral engine oils.
Exceeds API / JASO Performance Requirements
Max-Cycle® exceeds API / JASO new warranty requirements and is compatible with other mineral and synthetic motor oils. No flushing is necessary prior to use.
Environmentally Responsible
Max-Cycle® components are TSCA listed and meet EPA, RCRA and OSHA requirements. Max-Cycle® extends oil drain intervals, eliminates premature oil changes, decreases the amount of oil purchased and disposed of and conserves energy.

Max Cycle Features
	12 Quart Case Increases Horsepower, Max-Cycle® increases horsepower and torque over conventional oils. Increases Torque, Max-Cycle® increases horsepower and torque over conventional oils. Provides Superior Rust / Corrosion Protection, Synerlec® additive technology protects during normal and severe operation and acts as a preservative oil during shutdown.
	5 Gallon Pail Environmentally Responsible, Max-Cycle® components are TSCA listed and meet EPA, RCRA and OSHA requirements. Max-Cycle® extends oil drain intervals, eliminates premature oil changes, decreases the amount of oil purchased and disposed of and conserves energy.
	Max Cycle Lineup Greater Wear Protection Synerlec® additive technology forms a tough, tenacious film on all metal surfaces virtually eliminating engine wear. Greatly Extends Oil Drain Intervals, Max-Cycle® is extremely oxidation stable and stands up to the heat that causes oils to thicken, form lacquer and varnish deposits, lose its lubricity and shorten the life of both the oil and the engine.

Why Use Royal Purple? See PDF Below

Does Royal Purple® offer specific motor oils for motorcycles?
Yes. While the Royal Purple SAE and Racing engine oils may be used in motorcycle applications the Max-Cycle® line of engine oils has been formulated specifically for motorcycle engines and transmissions.
How often do I change Royal Purple® in my motorcycle?
While under factory warranty Royal Purple® recommends following the manufacturer's recommended maintenance intervals. In bikes with clean engines in sound operating condition, Royal Purple® may be used up to 8,000 miles with a filter change every 3,000 to 4,000 miles (top-off oil as needed). In motorcycles with high mileage engines, dirty engines or engines otherwise suspect in cleanliness, Royal Purple® recommends allowing two to three standard 3,000 mile oil and filter change intervals. This will allow ample time for Royal Purple® to gradually remove existing deposits / contaminants without overloading the system (pump, pick-up, filter, etc.). Once these precautionary intervals have been performed, drain intervals may be extended as recommended for clean engines.
What oil do you recommend for Harley Davidson motorcycles?
For Evolution and Twin Cam motors, Royal Purple's Max-Cycle® 20W50 is recommended. For Sportsters and Buell motorcycles, Royal Purple's Max-Cycle® 10W40 may be used. Check your owner's manual for verification or contact our customer service 7 Days A Week at 1-877-216-5446 or cs@realtruck.com .

Associated Documents

Royal Purple Frequently Asked Questions (pdf - 43KB)

Max Cycle MSDS Sheet (pdf - 90KB)

Testimonials (pdf - 15KB)

Why Use Royal Purple? (pdf - 111KB)

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To see a fully detailed independent test of Max Cycle please click on the Independent Tests PDF

Typical Properties*
SAE GRADE / API SERVICE
Viscosity	10W30	10W40	20W50
cSt @ 40°C	71.2	90	162.2
SSU @ 100°F	11	13.7	19.5
Viscosity Index	145	155	138
TBN	10 min.	10 min.	10 min.
*ALL PROPERTIES ARE TYPICAL AND MAY VARY

Associated Documents

Royal Purple Test Results (pdf - 998KB)

Independent Tests (pdf - 110KB)

Max Cycle MSDS Sheet (pdf - 90KB)

Testimonials (pdf - 15KB)

Note: Adobe Reader is required to view PDF documents: Download Adobe Reader

It’s recommended for use in both air-cooled and liquid-cooled 4-cycle engines and it’s compatible with wet-clutch transmissions. Just drain existing fluids and replace with Royal Purple Max Cycle. No flushing is necessary prior to use.

Royal Purple Synthetic 4-Cycle Max-Cycle Motorcycle Oil Customer Reviews

Customer Rating	Product
	RP-01315 - Royal Purple 4 Cycle Max Cycle Synthetic Motorcycle Oil Posted By: Timothy L. (Warwick) on 03/2008 I've done a lot of research on different types of oils for motorcycle engines and out of all the oils available three different oils stood out above all else. The three oils I had to choose from were Royal Purple, Amsoil, and Shell Rotella. I've used Amsoil in the past with good results but did not want to stick with one oil without giving the others a try. Despite what people say about the Shell Rotella I did not like it. It's great oil at a great price if you plan on only putting a few miles on your bike at a time or if you're racing and plan on changing your oil after a few hard laps. If you're like me and can put in 300 400 500 miles in a day you might want to stay away from the Shell garbage, it felt like it didn't hold up to prolonged periods of use to me. I finally got around to putting the Royal Purple to the test and I'm sold, I'll never use a different oil. I felt the difference the first time I got on my bike. As for their claims of added horsepower, I don't know, but I can say that my engine has never ran better than it does now. I would recommend this oil to anyone who loves their bike and would like it to perform at it's best.
	RP-01314 - Royal Purple 4 Cycle Max Cycle Synthetic Motorcycle Oil Posted By: Jarvis Q. (Antelope) on 03/2008
	RP-01316 - Royal Purple 4 Cycle Max Cycle Synthetic Motorcycle Oil Posted By: DAN M. (Downingtown) on 03/2008 GOOD STUFF!
	RP-01314 - Royal Purple 4 Cycle Max Cycle Synthetic Motorcycle Oil Posted By: Adrian W. (Lafayette) on 03/2008 Love Royal Purple products, use them in all my motors whenever possible.

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Royal Purple Synthetic 4-Cycle Max-Cycle Motorcycle Oil Customer Reviews

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