Product Comparison: Royal Purple 5W-30 vs Mobil 1 5W-30

General Specifications
Royal Purple
Mobil 1
HPS 5W-30
About the Product
Motor oil is made from crude oil and is used to lubricate, clean, and cool engines. Types of motor oil include conventional, synthetic, diesel, bio-based, hybrid (blends of conventional and synthetic), and recycled oils. Motor oil varies in weight and viscosity, as well as additives that some manufacturers add to the oil during the refining process. A numerical code system created by the Society of Automotive Engineers (SAE) grades motor oils according to viscosity, the higher the number between 0 and 60, the more viscous (thicker) the oil is. Most consumer motor oils are graded by two numbers, with the first number indicating cold weather (Winter or "W") performance. With a weight of SAE 5W-30, this oil has an SAE viscosity rating of 5 in cold temperatures and a rating of 30 at normal operating temperature. This oil is fully synthetic, meaning crude oil is not used in making it. Synthetic oil often provides superior mechanical performance over traditional motor oil, including increased gas mileage and reduced engine wear at extreme temperatures. Its complex method of production means it can often cost more than conventional motor oil. Royal Purple HPS Series motor oil is specifically formulated to maximize performance and meet the demands of high performance and modified engines. Fortified with a high level of zinc/phosphorus anti-wear additive and proprietary Synerlec additive technology, this unique blend outperforms leading synthetics and conventional lubricants. Available viscosities include 5W-20, 5W-30, 10W-30, 10W-40 and 20W-50. HPS is recommended for vehicles no longer under manufacturer warranty and for those seeking a higher level of performance and protection. Royal Purple's HPS Series of motor oil responds to increased pressure with increased viscosity. It's advanced additive technologies, such as Synerlec improves the condition of metal-to-metal contact under severe conditions for greater protection.
Mobil 1™ 5W-30 is an advanced full synthetic engine oil designed to keep your engine running like new by providing exceptional wear protection, cleaning power and overall performance. Mobil 1 5W-30 meets or exceeds the requirements of the industry's toughest standards and outperforms our conventional oils. Mobil 1 technology comes as standard equipment in many different vehicles, including select high-performance vehicles.
Key Specs
SAE Viscosity Grade
Engine Type
Diesel / Gazoline
1 quart(s)
1 quart(s)
What customers say about "Key Specs"
Royal Purple 5W-30 High Performance Street Motor Synthetic Oil
  • It beat the popular brands in many categories - the most important ones, at least. Film strength is unparalleled, for example. AND, it's not just for exotics. It will work nicely in your Honda, Ford or Chevy, too. Thank me later.
  • I own a 2004 Infiniti I35 witch is basically and 03 Nissan Maxima. Prior to using this oil I was using the Royal Purple API licensed full synthetic oil.
  • IMO the best 100% (98% for the naysayers reading this) synthetic motor oil out there. I use it in the Vette and in the daily driver.
  • I needed a full synthetic oil and I always choose royal purple. My 03 vw golf 2.0 just passed 200k miles and I want to ensure that the engine is totally protected.
  • This oil has the protection for flat tappet cams and it's synthetic.
Mobil 1 5W-30 Fully Synthetic Motor Oil
  • I switched to Mobile 1 recently, no more engine heat, no more tapping noise and never going back to any other oil. It's at 198,000 miles now and I know I can get another 100,000 out her if I stick to Mobile 1...
  • I've used this syn Mobil or Full synthetic Amsoil for years and never changed my oil under the recommended 7500 mile change period on our Infiniti & Land Cruiser engines. Both run like brand new and never burn any oil and I have ran Mobil extended 15,000 mi oil to 10k several times.
  • This is the only oil I use for my 2004 tacoma and it still runs well. It's a toyota so itll run well regardless
  • The engine quieted on start up, and smoothed out. I also always use Motorcraft oil filters since new. I have driven approximately 500 miles since the change over. The engine is quiet and smooth. I am satisfied that the Mobile 1 synthetic oil solved my noisy engines problem.
  • I first used Mobil 1 in a 1978 Ford F150 4X4 with a 351M engine. I removed the oil pan at 150000 miles to examine the bearings and crankshaft. There was minimal wear on all bearings and crankshaft. The surfaces were mirror smooth without any scoring on any surface.
Size & Weight
4.2 in.
8.6 in.
1.8 in.
4.2 in.
1.8 in.
2.5 in.
1.59 lbs.
2.03 lbs.
Canister Material
Temperature Range
-54.4°F up to 435.2°F
-43.6°F up to 446°F
ACEA Classification
A1/B1, A5/B5
API Classification
Maximum wear protection, Increase horsepower and torque, Advanced protection for performance and modified engines, Exceptional oxidation stability, Fortified with zinc/phosphorus anti-wear additive
Advanced full synthetic formula, Outstanding thermal and oxidation stability, Excellent low-temperature capabilities
General Motors Service Fill dexos1™ Gen 2 (license number D10104GH015), Honda/Acura HTO-06
General Motors 4718M, General Motors 6094M
What customers say about "Features"
Royal Purple 5W-30 High Performance Street Motor Synthetic Oil
  • Royal Purple is the best oil for high temperature running engines and around town driving.
  • Once it gets to operating temperature the purple tint goes away for good.
  • Yes, its great oil also for ford lovers. I decided to use HPS because it contains more zinc then any API approved oil.
  • For those concerned with their HPS line not API approved, fear not as this is far superior to their API licensed oils.
  • What you need to be careful about is the API classification for your vehicle. There was no indication of that when I bought the oil and found that it was wrong for my vehicle once I received my order.
Mobil 1 5W-30 Fully Synthetic Motor Oil
  • I have been purchasing this motor oil for my 2013 Chevrolet Cruze. I need motor oil that is Dexos approved, and this specific one is. It is good quality and I have never had a problem with this brand.
  • I use Mobil 1 full synthetic 5w-30 high mileage on my 1996 Honda Accord LX 4 cyl 2.2 F22 naturally aspirated engine. She had 132,232 K when I bought her, I've had her for about 6 months now and tuned her up as soon as I got brought her down from Conneticut.
  • It's mobil 5-30 I got. I have a new corvette. Under the hood it states use mobil 1. Nuff said for me. It's the best.
  • After a day or so take them out and turn them over. The Mobil 1 will flow like it's a summer day and the 'dino' oil will flow like cold molasses. This is representative of what happens to the oil in your car during the winter.
  • Mobil 1 has always been a superior synthetic motor oil which I use in my vehicle. Oil stays clean and allows longer interval between oil changes. It actually saves money since you don't change oil as often.
Other Information

Other reviews