you will find it will stop if you go to a thinner oil. i used 1540 in my 500sec for a little while too, but one lifter would stick on startup til i had 1500 miles on the oil change. i switched to 1030 mobil 1 and have no problem since.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.