If Bob Smith, who was VP of Lehman and wrote the Intro to the Lehman Owners Engine and Parts book, recommends the product, for engines he produced and still supports, his implicit view the product is good needs to be given some credence. That said, I`ve never heard of the product and my engines seem to survive well without it.
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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