Royal Purple HMX w/Synerlec | High Mileage SAE 5W-20 Premium Synthetic Motor Oil |5 Quart | SKU: 17518

Have never seen the high mileage, but it makes the car feel even better now. The quality of the oil is amazing, amazing price aswell. Highly recommend using high mileage royal purple in your oldies, keeps em running strong 💪

This oil is great because it last alot longer than most traditional oils its great for me considering i always exceed the miles that I should have done my oil change at and even then the oil still looks good I would recommend this product to anyone who is like me.

Love Royal Purple.

Great oil I stand on it

This is the only oil brand that I use going on 20 years. Price is more than others, but worth it. I can get up to 10k miles on a single change but the miles per change isn’t my factor, it’s the performance of the oil. Usually change around 7500. Their filters are great too, though it’s usually hard to find my size and order or buy multiples when I can.

Been using this oil in my 95 Tahoe for several years. Before that I used Mobil one synthetic for 15 years. I change it every 4k no matter what. It can go longer but I have a high mileage vehicle so I don’t take chances. For the price it’s not a problem for me since I change it myself. Just know this oil doesn’t stay purple. It turns to normal color after a day.

This product offers excellent engine protection and maintains viscosity very well, lasting more than 10K miles till the next oil change. I drive a 2014 F-150 KingRanch, and am well pleased

I've been using Royal Purple in my 2004 F-150 for the last 12 years. Im only changing the oil every 8-12 months and while I cant say that its specifically due to using RP but Ive got 190k miles on it and never had the slightest engine problem. I think possibly the bigger indicator of the positive results is that a 21 year old truck doesn't leak a drop. My parking spot is as clean as the day I started parking in it.