Redline makes two diesel additives 85+ and Diesel Catalyst. They are both the same expect Diesel Catalyst contains a smoke inhibitor. It’s aimed and the older high mileage diesel engine.

Power Service makes a competing product you can get at Wall Mart. Redline seems better at quieting the engine while Power Service gives you a centane booster that shows up in added mpg’s

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Toblin

'79 300D, "Liesel von Diesel", 235K

I kid proofed the house....but they still get in