New low sulfer fuel could be bad for VP44?
#46
I always run a quart of Power Service with 2 - 3 galons of Biodiesel and my fuel mileage has increased about a half mpg. Might be 'cause the summer fuel might be coming into the tanks, but the truck does run better and that bio is REALLy slippery and has great cetane rating .
And if BIO-Diesel has great cetane rating why do you need to add more to it??? A buddy of mine added more certane to his fuel and lost 10 HP / 18 TQ. So overdosing additives is going to reduce the performance of your vehicle. Thats why I don't uses a certane booster or anti-gel additive I only add lubricant! Most all fuels today excced the minimum 40 Cetane rated required by Cummins and EPA. So why do you need to add more???
But Most fuel today just barely meets the 520 HFRR rating. But remember our truck where designed for 300-350 HFRR fuels (LSD) not 520 HFRR fuel (ULSD). As for today there is not one addtivie product out there that can reduce the HFRR value back to 300!!! But I know 2 cycle oil will...
#48
Cetane number or CN is a measure of the combustion quality of diesel fuel via the compression ignition process. Cetane number is a significant expression of diesel fuel quality among a number of other measurements that determine overall diesel fuel quality. Cetane number is actually a measure of a fuel's ignition delay; the time period between the start of injection and start of combustion (ignition) of the fuel. In a particular diesel engine, higher cetane fuels will have shorter ignition delay periods than lower cetane fuels. Cetane numbers are only used for the relatively light distillate diesel oils.
Maybe it possible that someone overdose on additive in the BioDiesel before the dyno run???
#50
I use an additive called lubricity plus. 3 oz. to a tank, costs me 10 cents a tank to add, gives me 1 mpg more, plus increases fuel lubricity and disperses the water. Its not the easiest to find, but it is good.
#51
I just talked to a cummins representative. He said that cummins inc has done extensive testing on the vp44 and the 24 valve engine, and told me that it is certified for use with low sulfur and ultra low sulfur fuel. I am still using an extra lubricity enhancer to help this delema. I use a bg product part number 227d, 1 Gallon treats over 2000 gallons. So far no issues
#52
I just talked to a cummins representative. He said that cummins inc has done extensive testing on the vp44 and the 24 valve engine, and told me that it is certified for use with low sulfur and ultra low sulfur fuel. I am still using an extra lubricity enhancer to help this delema. I use a bg product part number 227d, 1 Gallon treats over 2000 gallons. So far no issues
#54
Ive been useing 2 stroke oil also, runs quieter. Seems to be the hot tip. Though Ive been wondering if im getting any extra carbon build up on my exhaust valves etc.
Anyone tear a engine down thats been run with 2 strke oil?
Anyone tear a engine down thats been run with 2 strke oil?
#55
1. 381 HP / 826 TQ on the rollers using 105:1 ratio of 2 Cycle oil...
2. My MPG has rose from 16-17 to 19-20 MPG with 2 cycle oil...
Now since I started using 2 cycle oil I've saved roughly $800 bucks and spent roughly $80 bucks on 2 cycle oil so I still saved a total of $720 bucks... Not bad...
If there was a problem with running 2 cycle oil I would of lost on my MPG's numbers, the HP/TQ numbers would of been lower...
As for carbon... Your pyrometer gets up to 1,000*F right??? So there is no carbon on the valves... My truck sees roughly 1000*F - 1200*F at least onces a day...
#57
#58
Now since I started using 2 cycle oil I've saved roughly $800 bucks and spent roughly $80 bucks on 2 cycle oil so I still saved a total of $720 bucks... Not bad...
If there was a problem with running 2 cycle oil I would of lost on my MPG's numbers, the HP/TQ numbers would of been lower...
As for carbon... Your pyrometer gets up to 1,000*F right??? So there is no carbon on the valves... My truck sees roughly 1000*F - 1200*F at least onces a day...
I started using 2 cycle oil ever since i saw your thread on the diesel garage. Thanks for all the info in this thread guys. 2 cycle is cheap and plentyful. And so far has been working great for me also..
#59