[BruceT]

I only have 1,000 mi on my 427R but have had no leaks. In Texas there is not a problem finding gas with acceptable octane rating, I know in some of the northern states that may be an issue. On a trip to Colorado recently I noticed in some areas that 89 was the best I could find. Roush's 3rd party warranty is kinda like major medical, won't pay for office visits, etc. If something big goes and you have done your part (maintenance as required) it should be taken care of. I cannot verify this with experience, have not had a warrantable failure. I would like to hear from someone who has tested the warranty. I paid a lot for the Roush.