Fuel additives when rig has been parked long period

[56 k/w]

I have a 56 kenworth bus with a c160 cummins mod. Engine had'nt been ran in 4 yrs. always garaged and low miles. So simply changed fuel filter and started up right off with no issues. I'm ready now for a maiden trip. Im wondering if I should be concerned with water or bad fuel from 4 yrs of idleness.. Runs great. I was thinking od adding 16 oz. of isopropyl alcohol for the water. Is this enough> probably bout a 50 gal. tank.. Then add also 16 oz. of marvel mystery oil for the added lube for the injection pump, Am I on the right track? should I be concerned with any old fuel issues even though it appears to run fine as it is. Though sure any water would have seperated and afraid could cause an issue once I take it out on the open road.. any help would be surely appreciated.. Thank you!!

[bus-bro]

It's a diesel, right? No alcohol! Drain water from low points. With diesel fuel an algacide is added. In any case, have some spare fuel filters. Diesel doesn't go bad like gasoline (though bio-D will).

[opus]

No on alcohol for sure! MMO is ok, PowerService is good too. Algaecide if it needs it. Surely change the fuel filters.

And most important...we want pictures of this thing!

[lornaschinske]

We haven't ever added anything to our diesel fuel. Not in the Eagle or the Blue Bird. The Eagle sat for over a year before a neighbour kindly siphoned all the fuel out of the dual tanks (got about 50 gallons over the winter... the area was big on heating with "oil" which is just off road diesel). The Blue Bird sat for 2 years with the fuel left from our trip out here. Amazingly, the fuel wasn't stolen while we were in TX. They must not heat with oil/kerosine out here. We try to crank up the bus every month or so. We recently managed to get the bus turned around in my daughter's back yard (that was tight) and it took quite a while to do it. No problems with the fuel. Both buses were filled in the middle of summer. I have heard that many fuel places now include the algaecide in their diesel fuel. I don't know if it's true or not. All I know is that our fuel is clear... I looked when we pulled the fuel float to repair.

[bus-bro]

You don't need an algacide unless your tank or source has been infected. It grows at the boundary layer of fuel and water (as I understand). So if one is worried about it, drain some fluild from the bottom of the tank and see if you get a significant amount of water. Best to limit the amount of water in the tank. When infected you get sludged fuel filters. One can always treat the tank with an algacide prophylacticaly, though the stuff ain't cheap.

[56 k/w]

Thanks guy's... sure happy I asked first.. johng

[opus]

Sweet ride! A 160 Cummins...interesting. Hows it go down the road?

[56 k/w]

It cruises nicely. But a little low geared. 60 mph tops..Though I have'nt experienced any grades as of yet.. Its the lack of power steering Im having difficulty with,, As soon as your rolling its fine.. Came with a gas engine international large straight 6 and was converted in the early 70's.. to the 160 cummins. Interesting background. was purchased from orig. owners daughter after his passing. He bought it new and contracted the local school busline up till early 70's before they went public.. He got his start with diesels as a tank mech. in africa in ww2 and followed patton through europe, After retiring his schoolbus transport. he kept this 1 bus and converted..

[opus]

Very nice. Always good to have a ride with a story.

[Stuff]

love the nose on that rig!

[Dragonpop]

One of the best fuel enhancers is Pri D, it will bring back old fuel to like new and improve economy and power as well.
It also makes a good stabilizer for storing fuel for any length of time and if you have a gasser you can use Pri G for
good results.