Working on diesels in heavy equipment all the time I spend a good bit of time talking to the guys at my local fuel shop. As a result I advise all of my customers to run an additive in all of their diesels, both old and new. The new fuel is supposed to have additives to make up for the lubricity lost due to the reduction in the sulfur content, but as great and non-problematic as the industry mags make it seem, the guys at the fuel shop tell a completely different story. In other words they love the new fuel because it makes business really good for them. The same can be said about bio-diesel. They said they had seen more injection pumps come through their door screwed up by running the 'natural' stuff that, percentage wise, it even beat the ultra-low crap.
That said I have run both Stanadye, Z-Max, and Powerservice brands in my service truck since before the new ultra-low stuff hit the market. I also have customers that run their own choice and as far as I know none have had any issuse with any of the name brand additives.
Personally I have to do quarterly fuel tax reports and when I started using the additive I was gaining around 1 to 2 MPG from my fuel, especially when I did alot of interstate driving every quarter. Once the ultra low stuff hit I lost nearly everything I had gained.
Basically any additive is better than none at all. The main thing is to run something, regardless of the brand. Beyond that keep a good check on your filters, and if it's got one, the water seperator. I've seen quite a few machines in the past few years actually shut down while in use due to dirty fuel, and even though I buy all of my fuel from actual stations, (don't have a bulk tank), I've seen the crap, I find in my filters when I change them, along with the water that, thankfully, gets stopped in the seperator.
In the end, the new fuel is crap and anything you can do to help it out will be better than nothign at all.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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