Diesel purge question - PeachParts Mercedes-Benz Forum

tangofox007 · #1 07-11-2007, 01:01 PM

Quote:

Originally Posted by tompaah7503

A local auto parts store however carries another product, Injection Cleaner from STP. Anyone tried the STP cleaner? Does it work or would I better get the Liqui Moly product by mail order?

Thanks..

Leave the STP on the shelf. Diesel Purge is worth the extra effort.

tompaah7503 · #2 07-11-2007, 06:17 PM

Thanks. I misunderstood the homepage earlier, it was a distributor, not a reseller. Called them and they will be e-mailing me tomorrow about the nearest reseller of Diesel Purge. Will get a couple of cans, besides my OM617 we have a couple of those OM616-powered 307D trucks also that needs some.. purge.

85chedeng300D · #3 07-11-2007, 09:28 PM

...or if DP is out of pocket, just use straight vegetable oil to purge the system

tompaah7503 · #4 07-12-2007, 05:20 PM

Okay, so I couldn't get hold of any Diesel Purge. Distributor replied that they don't bring this product to Sweden (why they didn't say) but recommended some tank additive instead. Quite disappointed I went to the nearest parts store and bought what they had, a can of Wynn Diesel Clean-Up.

This seemed to work. Ran it not as instructed on the can (fill fuel filter with it) but as you members recommended running Diesel Purge, fuel lines squeezed into the can. Ran engine on idle, took a small trip and ran further on idle 'til can was near empty.

Then I fed the system with fresh fuel and connected the return hose to a bottle to see what was coming out. Yikes!

Here's some pictures too..
First, the Wynn product
Second, what flushed out.. (1,5 litres of black fuel 'til I gave up)
Third, fuel filter full of crud (replaced both filters after flushing)

winmutt · #5 07-12-2007, 05:25 PM

That blackness is algae. Get some biocide in there and start running through some tanks. Search on here there is plenty of information. Any place with diesel products will have biocide.

tompaah7503 · #6 07-12-2007, 05:37 PM

Quote:

Originally Posted by winmutt

That blackness is algae. Get some biocide in there and start running through some tanks. Search on here there is plenty of information. Any place with diesel products will have biocide.

You shure? Not just general crud from the fuel lines? That's what I thought it was..

Well I'd better be on the safe side and get me a bottle of that biocide stuff..

winmutt · #7 07-12-2007, 05:40 PM

Quote:

Originally Posted by tompaah7503

You shure? Not just general crud from the fuel lines? That's what I thought it was..

Well I'd better be on the safe side and get me a bottle of that biocide stuff..

Thats what the crud is. Algae loves diesel. You will need to keep extra fuel filters in the vehicle with necessary tools to change them out. I suggest just draining whatever is in there out now and starting with a fresh tank.