[diesel_mercedes] Passing Inspection/Emissions test

 


I have a 1991 300D due for its bi-annual emisssions test.  I usually use MMO with diesel fuel and add Diesel Kleen or SeaFoam occasionally.  I can get B20 at a truck stop once in a while, in which case I don't use any additive.  It doesn't appear to be a "smoker".  When I'm under heavy acceleration I think I see a little fog in the rear mirror, but hard to tell.  It does have 288K miles on it.
 
QUESTION:  When I bring it in for the emissions test, what is the best thing to have in the tank?  Straight Diesel, B20 or diesel and an additive?
 
I'm in RI, which I think is not as strict as CA.
 
Any advice?
 
Joe

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[diesel_mercedes] still here

 

You boys still here? I thought I would sell my 2 -240's but realized I had separation anxiety so of course I could not go tru with it so here I am. I've had 2 or 3 more surgeries with long summers on crutches. This summers surgery recovery was shorter though and I actually could plant a garden and get fruit out of my orchard. I am burning 5 to 7 year old diesel in my 240's now. I mix it with fresh and put two big jugs of cetane booster in my 300 gallon tank. Yesterday was really the first day I ran it and it seemed to be super fuel. I hope I don't blow the head off the car. So whats new? I guess I will keep my 240's forever. Max

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