my nephew drug home a 90's v-6 mustang like that a couple of summers ago...down at the grease monkey oil changer guy he had a product they ran in the motor at idle for 15 mins, car had like 150k and I dont think the oil was ever changed much....no BS motor cleaned up, oil stayed clean even months later, would not believe it if I hadnt watched the whole deal...charged us 30 bucks for the snake juice.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: miket1</div><div class="ubbcode-body">Many years ago, my brother in law, who never changed oil, ever, had a 400 pontiac engine that he got all sludged up, i pulled the drain plug and it was and it was caked over so bad that no oil would run out, finally got it drained,added 4 qts. of 10w30 and 1 1/2 qts. diesel fuel, let it idle only, no driving, for over an hour,drained, ran new oil 1 week than we repeated the process once more,it cleaned out nicely and the new oil stayed clean, no problems. </div></div>