What oil to use
Just bought 2006 Navigator 113000 miles what
oil should be used 5w 20w is recommended but
do I use conventional or synthetic oil. Have no
records or stickers on car.. Thanks
If your unsure about what oil to use I have told people to use the blend oils half synthetic half convential, run it that way for a couple of oil changes before going onto full synthetic, if that is what they want to do, but a lot of them just stay with the blend.
Through various experiences, I know there will always be benefits to using full synthetic from a new engine throughout its entire expanded life. Benefits can be even greater in high mileage engines.
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