We do not make claims of one-time engine treatments. 6) Can I use CamGuard in a high time engine?
Yes, CamGuard is valuable at any point in an engines life. When added to a high time engine, oil analysis will often show an increase in metals across the board for a few oil changes. CamGuard does not clean engines but does allow them to clean themselves. This is reflected in both an increase in lead and insolubles levels. Lead levels may double as oil flow disperses deposit precursors for the next few oil changes. The increase in other metals is seen going up and is artificial as is the lead. If lead is twice normal then divide the other metal numbers by two to get the values for those metals.
