if it is a cummins diesel in a 2006, it IS a 5.9L (359 cubic inch)

every cummins dodge ever put in was a 5.9L up until 2007.5 when they changed to the 6.7L due to new emissions standards.

That was the year emissions controls started showing up on diesels, and the year diesel fuel switched from low sulfur diesel to ultra low sulfur diesel, and the price of diesel went from below the cost of regular unleaded, to above the cost of premium unleaded.

 

ahha! I always wondered why diesel fuel got so expensive.

 

yeah, they made the fuel worse for the trucks (stripped lubricity out of the fuel) and charge us more for it...

kinda like what they are trying to pull on you gassers requiring 10% ethanol in your fuels now...ethanol is NOT good for a gasoline fuel system...it is highly corrosive.

as for diesels they stripped the lubricity from our fuels so now a lot of us mix 2-cycle oil in our fuel at 128:1 ratio to get the lubricity back to save our injectors and injection pumps from eating themselves alive due to lack of proper lubrication.

some of you old timers know its all happened before when they changed from leaded to unleaded...older cars that ran on leaded would eat themselves alive running unleaded. same scenario is happening to the diesels now..

 

Around here ULSD has 15% BioDiesel which helps to counteract the problem. As far as unleaded gasoline I just use seafoam to help lube the fuel...

 

OK, I stand corrected. I thought the Cummins was a different displacement.

Actually, that's a myth. Lead was not needed for lubrication, although people thought it was (remember, the lead was added to the fuel). Any vehicle that requires Leaded Gasoline can run just fine on unleaded. If it will be run on a regular basis then the owner should have hardened valve seats installed.

 

So vdub, are you going to buy it? Surely a $30 increase in insurance cost's doesn't break the bank.

 

I'm still debating it. I went back to the dealer's website and they jacked the price up $2k. Luckily, I found the ad on AutoTrader and printed it out with the original $24k price.

I would trade my Mazda for that truck and hopefully get a $5,000 trade allowance considering the bullet hole in the door, plus it needs new tires.

We'll see what shakes out.

 

Bullet hole and new tires? Images I saw in the link you provided didn't show a bullet hole and the tire they showed looked good.

 

Bullet hole? That should demand a premium in Oklahoma if the blood is ceaned up!

And VW is correct - lead was added to the gas and not an original component. And for diesel, it used to be cheaper because it is made form crappier hydrocarbons that were either not acceptable for use in other products and distilled out at lower temps (lessening the processing requirments and time). The price is higher because big oil wants it higher!

 

you just proved my point...

diesels can run without additives in the fuel as well for quite a while as well, but its only a matter of time before an injector sticks or injection pump fails...

people of the diesel community have done a ton a research on this as have the manufacturers of the injectors and injection pumps..

they have a rating system for fuel lubricity, and a recommended rating and have done tests on pumps running fuel with different lubricity levels and shown pump wear results vs lubricity content rating...

standard ULSD from the pump with no additives was tested and got a HFRR score of 636.

here is the test results chart from Bosch regarding vp44 pump life vs HFRR score



and how additives improve or reduce the score done by an independent diesel performance shop just for the sake of finding out what works and what doesn't.