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Apparently direct injection motors have issues with gasoline dilution in the oil. Project Farm did a great segment on some oil testing and on one of them, added 5% gas to the oil (typical is 1%-2%).I have the EB engine and decided to go with Motorcraft full synthetic oil at 500 miles and change every 5K miles. Here is my dilemma: I am at 4500 miles on the full synthetic and it has a strong gas smell. The level is the same as when I changed it so I am guessing I lost some oil and gained some gas? I ran 2500 miles on this oil at 75mph to 80 mph on a trip to Florida. I am starting to think maybe highway driving is harder on the oil because the turbos are going at it a lot? Let me know what you guys think because I will probably do another oil change real quick.
It increased wear by about 10%. If it were me, I would change the oil if it smelled like fuel.
Just press play, it starts at the correct segment:
My honest opinion after reading a bunch, watching videos etc is that it's probably better to use a "less good" oil but change it much more often then striving to get "the best" oil. Project Farm did another test of manufacturer oils and Motorcraft was by far the best. Honestly, I don't think you can go wrong using Motorcraft oils and filters and changing them regularly. Outside my warranty period I may go with a cheaper non-OEM brand like Pennzoil Platinum with the Gas-To-Liquid base as it seems to be a super clean and high quality oil for low cost.
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