04154 15W40 Oil, 1 Gallon (128 Ounces)

This is the only oil I use with my Kubota tractor. I change the oil every two years which is about 120 hours.

Great stuff

Exelente aceite para mi motor diesel de mi tractor yanmar af18 con eso vas a fija

Just the best

I only run royal purple in my diesels.

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.

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.

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.

I use this oil for 20 years and nothing never happens and when I open my engine they look like new

great product

Excellent oil, my tractor loves it

As advertised