Does anyone use any of Lucas oil's products in their pony or alternate winter vehicles? I have read that some people think that it's more effective to uses Lucas oil additives in gear oil then to use Royal Purple fluid. Any thoughts are appreciated.
right now i am using lucas oil and their oil stabliizer and it works great. my stang has never run better.
What about Lucas upper cylinder lubricant? Will it void the warranty or would it damage the fuel filter?
