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Re: 'High Mileage' Oils for Older Vehicles; Benefit or Marketing?
Posted to Shop Management Forum on 2/8/2006 1 Reply

I was from the old school of starting with 10W30 and moving on to 10W40 then 20W50 as the cars got older and miles started racking up.

When I started buying new cars the last 10 years or so I used only OEM (Motorcraft) 5W20 and 5W30 oils. After all the talk ... Login to read more.

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