1994Shy
Newbie
Hi everyone. I know this has been discussed at length pretty much everywhere but I just wanted to see what y'all are using for oil. Currently running pennzoil 5w30 full synthetic. Should I use high mileage? 194,000. Thinking of switching to conventional oil and changing at 2500 miles because I keep hearing synthetic is bad in older engines because of it having high detergent. What has been your experience?