Quote:
Originally Posted by JFP in PA
What I find particularly disturbing is that a supposedly knowledgeable shop told one of the posters above to run it until metal shows up in the oil and then call them. According to both Jake and LN dictum, once you have any signs of ferrous metal in the oil, the car is no longer a viable candidate for a retrofit. If that poster called my shop, he would be told as much.
The retrofit concept is one of being pro active; doing the retrofit before any metal shows up in the filter or pan. Once it is there, we would never retrofit the car.
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It is for this reason I question the value of the Guardian. IMO by the time enough metal has accumulated to trigger the Guardian your engine is already disqualified for IMSB retrofit.
78F350 Beat me to it!