Quote:
Originally Posted by 300SDog
I *used* to advocate high mileage conversion to synthetic..... Converted the 300SD to synth at about 260k miles - spun rod bearing less than 20k miles later  |
... what were the oil change intervals before this on the car? was it EVER run low on oil? did the oil cooler lines ever fail before? I believe you are in the minority of problematic synthetic changers...