diesel oil

our f250 diesel engine has always been sort of noisy, but we changed the oil yesterday with valvalione blue 15/40. the motor really seems to have quited up. it seems to run a lot smoother also. the oil is ment to be run in the cummins motors, but we got it cheap thru a friend. any one else use it in a power stroke? the friend drains his oil at about 10000 miles and that oil looks fairly clean. hope its real good stuff.

Mike,

I've used the Shell Rotella 15/40 in the CTD since the beginning. I change it out every 3,000 miles when towing and 6,000 when not.

Rotella, every 5k. Quieter would be nice!

i use amsoil 10w40. pure synthetic diesel oil . i add 2cycle oil to my fuel to quiet my engine and lube the injectors. i use the ashless and add i oz to the gallon. get a little more black smoke during throttle, but it works. i change oil every 12000 miles and i change the filter every 6000. oil has looked good every change.

I use 15W-40 amsoil in my truck change the filter around 12,000 and change the oil every 25,000 I've done this in my last three diesels and haven't had any issues with the engines at all. I might burn a half a qaurt of oil in the 25,000 miles time span in between the filter changes but that's it. My buddy does the oil analysis on his amsoil he changes the oil around 50,000 in his truck it has I think 80,000 miles on it now, mine has 105,000 miles and still running strong. I also add 2-stroke oil to my fuel to help lube things up also makes the truck run queiter I add 1 qt. per tank 26 gallons every other tank depending on the fuel I'm running.

I know you asked about Powerstrokes, but I will state what I do with my Duramax. I run Delvac 1300 on the recommendation from a Lubrication Engineer, plus that is the oil GM recommends. My DMax has almost 210k miles and does not burn a drop of oil between 5k mile oil changes.

What I have noticed help quiet the engine is running a bio-diesel mix. A local truck stop has B5 which adds lubricant to the dino-diesel. The B5 makes a noticeable difference in engine sound.

Bio-fuel is the best fuel lube you can get, no doubt about it. The price of it up here is more than regular #2 diesel.

just curious, on what others thought. as far as that 2 stroke oil, a lot of folks have been using it. a bud of mine told me sometime soon the oil companys will be adding some new lubricant instead of the old sulfer. guess fuel prices will reflect that to.

The ULSD fuel the oil companies are already adding lube to it because of how refined it is. That's why alot of us are adding the 2-stroke mainly because your hoping the oil companies have added enough lube to the fuel.

grover,

A few years ago, the local Love's truck stop was running B-20 until the state of Texas had the brilliant idea of outlawing bio-diesel. The bio-diesel board got a referendum from Texas allowing the sale of bio-diesel, but nothing higher than B-5. Lubrication studies I've seen indicate the B-5 provides sufficient lubrication for the injection system.

Fortunately around here, bio-diesel goes for the same price as 100% dino diesel.

Maxrock,
I seen on the diesel page were they did the lubricity study on all the additives and bio-fuel B2 was the number one. Walmart super tech 2-stroke was #7.

There ya go! I can tell when I'm running B-5 vs. straight dino, the engine doesn't rattle as much.

I use Shell's synthetic 0w40 oil. I change oil at about 12000km's. I use it summer and winter, evening going down to AZ and TX in Feb/Mar. With synthetic, if your engine has a leak, synthetic will find it. Mine doesn't. My Cummins has 275Km.

I had been using Royal Purple until it became hard to get locally. I used it in my truck and three tractors. In the tractors you could see the benefits. They ran cooler and used less fuel. Now I use Amsoil.