FAQ's

Car Oils

1- Can I use Racing oils in my Street car?

Yes. Royal Purple XPR Racing Oils are fully formulated engine oils with complete additive packages needed for long-term use. XPR’s ultra-light viscosities (like 0W10) are typically only suitable for dedicated competition engines that are built to use low viscosity engine oils. Non-ultra light viscosities, XPR 5W20, 5W30, 10W40 and 20W50 may be used in street driven and daily driver applications, street and track duty vehicles and dedicated competition applications with gasoline or exotic fuels.

Please note: Royal Purple XPR Racing Oils do not conform to API and/or ILSAC licensing requirements and should not be used when manufacturer’s warranties are an issue.

Contact us if further clarification is needed: admin@oils4racing.com

Motorbike Oils

2- What viscosity is recommend for motorcycles?

Follow the manufacturer’s recommendations regarding viscosity. Most manufacturers recommend a 10W-40 for 4-Cycle, liquid-cooled motorcycles. Air/oil cooled motorcycles typically specify a 20W50.

Contact us if further clarification is needed: admin@oils4racing.com

Boat Oils

 3- How do I determine what viscosity to use, if I do not have an owner’s / operator’s manual?

Most all 4-stroke gasoline marine engines recommend a multi-viscosity 30 or multi-viscosity 40 weight engine oil. The most common is the 40 weight with the most common exceptions being Honda and Suzuki outboard motors.

Contact us if further clarification is needed: admin@oils4racing.com

4- How often should I change my lower unit oil using Royal Purple?

Assuming there is no contamination from foreign substances, we recommend up to 3 times the hours or time listed in the owner´s / operator´s manual, whichever comes first.

Engine Oils Additives

5- What makes Max-Boost any better than other octane boosters?

Royal Purple Max-Boost provides up to 30 points (3 octane numbers) increase in fuel octane, which meets or exceeds the boost of any other consumer octane boosting product available, and it carries the added benefits of stabilizing fuel, cleaning deposits and providing protection for non-hardened exhaust valve seats. It effectively replaces 2 to 4 products, depending on your needs.

Contact us if further clarification is needed: admin@oils4racing.com


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