Synthetic or Conventional Oil?
I have a 2005 Ford Escape V6 AWD with 125,000 miles. Have been using conventional oil, but wondered if I should change to synthetic.
The conventional wisdom is that going to synthetic on a high mile car could cause problems with dirt in the engine being cleaned out by the higher levels of detergents in the synthetic oil and possibly harming the engine. If you changed your oil every 3,000 miles and the inside of your engine is pretty clean I don't see any harm in it. I would use a top grade filter and change the oil at 3,000 miles the first time you run synthetic though. Every 5,000 miles after that.
Full_of_Regrets, my mechanic would not agree with you about switching to synthetic oil, you can do this anytime, and, it's always advisable to keep up with regular oil changes.
The biggest benefit of synthetic oil is that it can withstand much higher temperatures without breaking down, giving lubrication to the whole system. At least, that's what I've been told.
dg2007, Ford recommends a syn-blend oil for your vehicle. Part conventional and part synthetic. No need to spend extra $$$ on full synthetic. It's in the owners manual. Motorcraft 5W-20 Syn-Blend, get it for a decent price at your local Walmart. Pick up a motorcraft filter as well. I replace my oil in my Tribute every 5K.
Old proverb: If it ain't broke, don't fix it!
I meant to say, no doubt
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