Forum Discussion
FishOnOne
Sep 02, 2013Nomad
The only fuel additive that actually improved fuel economy in my trucks is the Motorcraft product and that was in my 6.0 psd.
My '12 6.7 psd it doesn't seem to improve fuel economy on a already steller fuel economy performer as is.
My '12 6.7 psd it doesn't seem to improve fuel economy on a already steller fuel economy performer as is.
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