Hello, what do you guys think about a 2005 explorer v6 rwd? I bought one with now 195k miles on it. Have had to put 1k in it but now it is decent. The transmission is way better since i i changed the fluid twice (used Valvoline maxlife atf that got all gunk out of the valvbody so no jerk anymore when i put it into Drive or Reverse. It also whines a bit if i hit 3000 rpm but i try not to go above 2000-2500 rpm, it is probably the transmission pump but the lighter maxlife transmission fluid should help too). The main issue i see is that there is some kind of engine oil dilution (that really concerns me and i i think that i will continue with 5k miles oil changes and that i stay with full synthetic oil. I don't think that the dilution is too bad but it keeps the oil level staple -> delution eqyals oil that geys burned). Is there anything else that i can do to make the engine last longer? And do you think i should put one bottle of "lucas oil stop leak" in the engine after every oil change or is that wasted money?
Oh i i have to mention that about 80% of my trips are less 2-5 miles, so maybe thats the only problem? When i bought the vehicle the seller told me that the engine was replaced at 90k miles but i didn't ask for a receipt/bill nor did i ask if they put a used or new one in (but i believe him that the engine was replace at 90k miles bc i saw no oil change record on the carfax until 90k miles but after that every 5k miles, looks to me that they didn't do oil changes until it blew up at 90k miles).