We drive the cars in our museum, however it is sometimes a month to 6 weeks between drives for each one of our cars. I now feel much more at ease when I start up one of our cars because of the additive package and the Z-ALT Infuzed-Moly metal conditioner in Z-ALT Muscle Car Oil. We have had cam failures in the past, and now we just don't have to worry about it anymore. All of the cars in our museum have been changed over to Z-ALT.

Tim Wellborn

  I've been using the Z-ALT 10x additive and Z-ALT Muscle Car Oil for the last eight months and I've had superb results. I put the additive first in my Daytona with Vavoline VR1 and was astonished as to how it "woke up" my Hemi - it idled smoother, rev'd smoother, ran five to ten degress cooler, and certainly seemed to be producing more power than before. When the oil became available, I changed to the 20/50 and have continued to have the same results. I've been doing my inital break ins with this combination and I cannot believe the lack of wear on the cylinder walls when I pull the oil pan after the cam break-in, to do my final checkout before I ship an engine. All the engines I build are now broken in with Z-ALT 10x and leave my shop with Z-ALT Muscle Car Oil. I could not give this product a higher recommendation.

John Arruzza