Royal Purple
#1
Guest
Posts: n/a
![Default](/forums/images/icons/icon1.gif)
I want to change to Royal Purple oil in my boat and Ford diesel truck. I'm not sure which oil to buy.
Boat engine: 496Mag modified to 550hp @ 5400rpm
Truck engine: 7.3L Powerstroke diesel
Can I use the same oil in each motor? 15W-40? I can't find any info saying the 15W-40 is ok for diesels. I found a website to buy the oil - www.rpmoil.com
Thanks
AWelsh
Boat engine: 496Mag modified to 550hp @ 5400rpm
Truck engine: 7.3L Powerstroke diesel
Can I use the same oil in each motor? 15W-40? I can't find any info saying the 15W-40 is ok for diesels. I found a website to buy the oil - www.rpmoil.com
Thanks
AWelsh
#2
Charter Member #1171
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
I have run RP in my boat for years. I run straight 40 and get it in 5 gallon jugs.
__________________
I want to live in a world where a chicken can cross the road and not have its motives questioned.
I want to live in a world where a chicken can cross the road and not have its motives questioned.