Royal Purple32130 HPS 10W-30 High Performance Street Synthetic Motor Oil with Synerlec - 12 Quart

PStunning did a great job getting me the Royal Purple 5w-30 in a timely manner. I would definitely buy from them in the future. The RP 5w-30 was quieter than the Mobil One 5w-30 that is spec'd out for my LS3 vehicle, the last time I used it. Quieter cold starts and quieter at running temperature. Thank you PStunning, Good job.

Been my preferred oil since I got two vehicles that use the 5w30 viscosity. Makes the vehicles feel less lethargic, and seems like it gave me a smidge better mpg.

Love that this ships Hawaii. I prefer this brand over other ones.

I use it in my 1973 Ford f250 360CI. Runs noticeably quieter and very smooth compared to your average conventional oil. I would say this is great stuff for older engines with flat-tappets. I messaged Royal Purple and asked what they recommended for an older car and this is the stuff. Lots of Zinc and Phosphorous/ZDDP substitute for the older technology. It also has an extremely high viscosity index, out of any oil I've seen, so you know it will perform great in those temp extremes as well, hot and cold. At about 11 bucks a quart if you buy in bulk, it's also hard to beat the price when comparing to Amsoil or Redline, although those would be great choices as well.Comparing other options, Amsoil is a bit thinner than this and offers a little bit better cold weather performance and longevity, but is pretty expensive. Redline is nice because you know what they put in it, no secrets with them--very high quality group 5 ingredients. It's also the most robust, and probably offers the greatest protection in extreme operation. Don't necessarily know what they put in the HPS, though I imagine it's a high quality group 4/5 ester/PAO base, either that or its got a pretty beastly additive package to perform the way it does. Mobil is another obvious option and is probably the best all-rounder for your newer cars, though some of these "boutique" oils I've mentioned offer more specific things if you need them.Overall, I think this one wins the comparison for price and if you don't change the oil every 20,000 miles. Personally, I wouldn't wait that long on any vehicle. Maybe 10,000 at the most in an engine that is perfectly sound.

The box used to ship items in had oil stains on it. We check the bottles and none of them were open or pierced. Maybe the box was next to another that leaked but it definitely had oil stains on it.

Only oil that makes my busted old girl run like new

You feel the difference of smoothness with this oil, superb quality!

Have been using this oil in my 1300hp hemi and inside my engine still looks new . I have oil samples tested throughout the race season and this oil does not breakdown .

Been using this since 11k on my car .At 44k and now at 168k sent an oil sample for analyze to Blackstone Laboratories and all is good.Engine has perfect compression, doesn't burn any extra oil ,I should be able to get another 100k out of it easily.

Been using it since 2009. Outstanding performance from this oil. Highly recommended.

My 300km CRV started to get a single drop every time I take it out of my garage. Always just one drop, even if the car hasn’t been used for days. This started the day after I changed the oil. Maybe a fluke thing that happened to just me, but I thought I should mention it. I would recommend using their HMX oil for high-mileage vehicles... I would like to switch to it myself, but NOBODY seems to carry it in 5W20. Best of luck.

ドス黒い紫のオイルです。オイル交換を頻繁にできるので日産の安いオイルも良かったです。交換後の体感はあまり感じていませんが、エンジンへのお祈りとして入れました。

販売者同士の、小競り合いが無ければねぇ。そこが凄く残念。