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๐ข๏ธ Power your drive with Royal Purple โ where performance meets prestige!
Royal Purple 15W40 Motor Oil combines premium base oils with advanced additives to provide superior engine protection, improved fuel efficiency, and enhanced compatibility with ethanol fuels. This universal-fit, API SN licensed oil safeguards your catalytic emission system and resists corrosion, making it the smart choice for both gasoline and diesel engines.





| ASIN | B000OP6KLY |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #10,011 in Automotive ( See Top 100 in Automotive ) #142 in Motor Oils |
| Brand | Royal Purple |
| Brand Name | Royal Purple |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 802 Reviews |
| Global Trade Identification Number | 00641330041549 |
| Included Components | 4qts of Royal Purple 15W-40 |
| Item Type Name | Oil |
| Item Weight | 7.7 pounds |
| Liquid Volume | 128 fluid ounces |
| Manufacturer | Royal Purple |
| Manufacturer Part Number | 04154 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Model Number | ROY04154 |
| Number of Packs | 1 |
| Package Information | Bottle |
| SAE J300 Viscosity Grade | 15W-40 |
| Size | 1 Gallon |
| UPC | 641330041549 |
| Unit Count | 128 Ounce |
| Vehicle Service Type | Car |
| Viscosity Level | Medium to High |
E**.
Ok
Royal purple came out the worst oil to use But the trans Syncro manual trans fluid is outstanding
M**E
Good oil
Received in a timely manner. Works as expected.
D**S
Calidad insuperable
Exelente aceite para mi motor diesel de mi tractor yanmar af18 con eso vas a fija
G**M
Canโt beat it
Used this oil in my 2005 Duramax, little pricy but well worth the price in my opinion
C**C
Best Oil
I have been using this oil in my vehicles since 2012. I took my truck to the shop for a tune-up, and the mechanic recommended this oil, telling me how great it was. At first, I thought he was just trying to upsell me, but I decided to give it a try. I reset my fuel mileage to monitor the effects of the new oil. Sure enough, I started getting three more miles per gallon. I was convinced and have been using it ever since.
J**T
Great stuff but 5 gallons is to hard to handle.
The price is right but the container is too hard to handle. We used a funnel with 2 people but we couldn't tell how mush we were putting in the engine. We had to check it 10 times, also we spilled about 8 onces on the ground and a small amount on the engine. This would work best it I had 20 quart Mason jars and filled them all at the same time. Somewhere I have a pour spout that fits onto a mason jar. If I could only find it.
C**R
Not bad.
I have used RP, Shell Rotella T6, and Valvoline Syntech (both semi and full synthetic), Valvoline Premium Blue and conventional dealership oil in my last 2 Cummins. The RP seems to do a pretty good job. No excessive valve noise, doesn't seem to burn off, good pressure at idle and higher RPM's (based on the RAM calculated oil pressure gauge) and runs about as cool as the Shell Rotella T-6 (190-201 F. at operating temp). I probably won't buy again though. For the price I think I am going to go Amsoil HD kit which is 12 quarts plus a filter for about $200 U.S. dollars. I'm going to try Amsoil at my next oil change. However, I have no complaints about the RP.
T**S
Great stuff
Great stuff
L**D
Good oil
I use this oil for 20 years and nothing never happens and when I open my engine they look like new
J**S
Thanks
great product
B**M
Excellent
Excellent oil, my tractor loves it
E**W
Five Stars
As advertised
Trustpilot
2 weeks ago
4 days ago