August 17, 2018

Do Royal Purple Extended Life Oil Filters meet all original equipment requirements and vehicle warranty?

Royal Purple filters meet or exceed original equipment manufacturers’ requirements. All new car warranties remain in effect when using Royal Purple Filters.
August 17, 2018

Are Royal Purple Extended Life Oil Filters compatible with all conventional and synthetic oils?

Yes. All Royal Purple premium oil filters are compatible with both types of motor oils.
August 17, 2018

Why should I use a high mileage oil

A properly formulated High Mileage oil like HMX will help reduce oil consumption and restore lost power. HMX is chemically enhanced to revitalize hardened seals reducing […]
August 17, 2018

Is HMX® different from your API-licensed engine oils?

Yes, HMX is fortified with Royal Purple’s proprietary Synerlec additive technology as well as additional seal conditioners beneficial to higher mileage engines to maintain elasticity of […]