Auto-RX in 4 vehicles
93 Dakota 5.2 - 128K - stopped valve train clicking on startup. One bottle only.
67 Ford Galaxie - 70K orig - Idle speed went up enough that I had to adj carb idle speed screw. Valve noise gone at startup. Smoother idle.
98 Chrysler T+C - 71K - Definitely smoother idle
01 - Lightning - 7K - no difference...
Overall VERY impressed...
Jerry
Thank you for the positive feedback; I'm sure you had no problem following application directions. Your results show me this. If you use a 3-ounce maintenance of Auto-Rx in every oil change, your benefits will be measurable, stable, and cost-effective, i.e., increased compression, effective combustion, no seal leaks, extended engine life, low operating cost per mile.
Frank
"My fiancée’s car (1991 Honda Civic DX) began to get a very bad rough idle about 6-8 months ago, so I began to add some Marvel Mystery Oil (MMO) in the oil for.... read more
Test was performed to determine effectiveness and compatibility of the Auto-Rx® extended engine performance dose in an extended oil drain.... read more
In November 2005 I purchased a used 2001 SAAB 9-5. Having a bit of experience with SAABs (my last car was a 1997 SAAB 900 turbo), I knew this... read more
