DFC is a FUEL additive. As such, it does nothing to affect your oil leak. It may help with oil consumption, as it will reduce the amount of smoke (which is mostly diesel fuel oil anyway), clean your valves and compustion chamber, and help your car run better. You can also use 85+ instead, They are identical. Just read the label, and don't overdose the fuel system. It won't hurt your car, but can get expensive @ $4-5 a bottle.

Get the straight scoop: http://www.redlineoil.com.

Hey, nice car, I think I got one sorta like it!

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Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."