Fuel additives

[DaveNay]

</font><font color="blue" class="small">( Even Paul Brand (the local newspaper and radio car talk show host) promotes it heavily.)</font>

Hmmmm....maybe they sponsor his show ? /forums/images/graemlins/smirk.gif /forums/images/graemlins/smirk.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

I guess I will have to try some additive some day, but like I say, no problems yet.

Dave

 

[rmonio]

I know they sponsor his show, Dave... /forums/images/graemlins/smirk.gif But the stuff really does make a difference and if you are going to use an additive, I highly suggest it.

-Bob

 

[SageBrush]

The two stoke oils I've used over the years all have "fuel stabilizers" in them too. Even the no name cheap stuff I use at work. My gas engines must be run dry or they won't start in the spring. I've stopped up a few carbs.

Down here in GA, I've seen entire dirt contracting fleets shut down due to diesel freeze ups. My 650 JD will freeze up once it hits the 20's. I didn't use Power Service before, it took a cold morning of thawing tractors to convince me. /forums/images/graemlins/blush.gif

Last winter my stuff was running, everyone else had to shut down. Down here, I can't get "winter diesel". A real pain when you burn thousands of gallons a day. We have to blend our own in the fuel truck or add PS to the tractor tanks. So, winter is PS time and once a year I like a diesel cleaning additive to keep it all algae free.

I doubt its worth running these wonder liquids year round.

 

[jdg750]

This past week I've been searching for what might have caused the slowly increasing loss of power with my old JD 750.

After reading the posts in different forums, boating, off road,
etc... I'm beginning to suspect that the automotive grade diesel fuel from my local station probably was a little light in sufficient additives.

Low hours (about 1000) no smoke, just not as much power & with fairly steady 'popping sound'. I've replaced one injector for the front cylinder that had an 80 degree lower exhaust temperature than the other two. No improvement in power or an increase in exhaust temperature.

The following site gives info about 'modern' diesel fuel:

http://www.chevron.com/prodserv/fuels/bulletin/diesel/L1_toc_fs.htm

What I believe is that my injector pump is losing performance and causing the injectors to not pulse enough fuel. I'm possibly also getting a little diesel into my engine oil since my oil level between changes does seem to increase a little instead of decreasing.

I think the new diesel fuels reduced aromatics have affected the seals on my pump & the reduced lubricity has caused more rapid wear.

I plan to send my pump in for checking & possible rebuild but will start using the Stanadyne additives for all future diesel purchased for my tractor.

 

[Junkman]

I had the same problem with my old Oliver. It was just plain tired and needed new rings installed. Diesels do run for a long time, but they also do wear out, as much as we don't like to admit it. If it wasn't taken care of properly in its first half of life, it will definitely suffer in its second half of life. Just like us humans... /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

 

[jdg750]

I don't think at 950 hours the rings should need to be replaced but I have been wrong before. I posted because some diesel users seem to think that additives are promoted similar to the way that vitamin supplements are promoted.

Since the government required that diesel fuel be altered to reduce pollution then I think additives to increase lubricity & aromatics or not a bad idea.

This site has info about diesel fuel refiners, additives, & also what seems to 'good' information about antifreeze that if ignored could lead to early failure caused by corrosion or metal eating cavitation if the proper additives & mixtures are not maintained.

http://www.penray.com/bulletins/

I know too much information can be confusing to the point that it's tough to know what is right or wrong. But a few weeks ago after my first time to add a supplement there was a noticeable improvement in performance (still not up to par) & the exhaust sound smoothed out.

 

[Junkman]

950 hours should not require ring replacement, and this was just a possible cause. Knowing how the machine was maintained is important. If no one did oil changes but once or twice, there very well could be excessive wear in the engine. Are you the original owner? If so, you know your machine and how it was maintained.

 

[JeffRey30747]

Poor air filter maintenance can lead to compression problems in a diesel, also. I will have to do a ring and sleeve replacement on my YM186D sometime in the future due to an air filtration problem that existed on my unit when I purchased it unknowingly. It still has a reasonable amount of power but starts hard in cooler weather and blows oil out the crankcase vent. For the record, it only has 917 hours (or 1917 or maybe even 2917) /forums/images/graemlins/smile.gif

Jeff