Folks,

A few weeks ago I went over to Maryland, filled up with Commercial, 100% Soy, B 99.9......the car took 18.1 Gallons so I figure that the final blend was close to B 90.......

I have also recently overhauled the suspension of my 300D, so I decided to work the car a bit......ran around 80 to 84 mph for a couple of hundred miles. Also noted that I had to really put the pedal to the metal in an attempt to maintain speed on those long grades on I 68 (7% for 13 miles).

Car ran very well, obviously there was a minimal performance drop with the B 90...but the car appeared to run a bit cooler, as well.....

But....most amazingly.....my ignition knock (nailing) has vanished......I have done everything short of changing pre-chamber with little success in ending the knock......began to live with it.....and now, Poof.....it's gone....

I have no actual proof that the B 90 actually had an effect on the issue....

I can only think that perhaps the use of B 90+ has managed to clean up some lingering carbon deposits.......

Just thought that someone would be interested in this....

SB

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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
'67 Eicher ES 202 Tractor "Otto" (2cyl, Air Cooled, 30HP)
Gassers:
'94 Ford F-150, "Henry", 170K (300 Six) 17.5 MPG
'85 190E 2.3, 148K....Parts Car
'58 Dodge W300M Powerwagon (Flat Fenders) Less than 10 MPG