I just adjusted my valves after a extended service interval of 70,000.
I know thats bad but I did the previous adjustment at 25,000 int. and they only needed very slight adjustment on 2 valves. I meant to get to it at 35-40K and lost track of it.
Anyway they were all tight, a couple of the exh. very tight!! I probably dodged a bullet here but there seems to be no harm done.
I'm keeping it to 30K from now on. I know its 2X the reccomended interval but at 295K miles total on the car they dont even budge at 15K.
Stephen