Best Oil for oil change

[AC Molina]

Have a 2008 Ford Expedition that has over 250,000 miles. Noticed small oil leak, what is the best product to buy to help when i do my oil change. Use pennzoil high mileage 5/20 weight and Slick 50 recharged high mileage engine treatment?

Any other products recommended. Recently had my tune up about 6 months ago, not sure if mechanic placed the gasket back right, hope he did and just needs treatment of some kind.

Thanks in advance
AC Molina

 

[JExpedition07]

Where is the leak? Valve cover? Pan? If it’s leaking he probably didn’t get a good new gasket if it’s replaced it shouldn’t leak. Advice, don’t ever switch back from high mileage oil after you go to it, it expands your seals and if you go back to regular they can shrink and leak.

 

[1955moose]

I concur, don't change horses in middle of stream. Also don't recommend any additives they can cause more harm than help. Use a Ford or quality oil filter with drain back valve. Oem Ford works as good as any. Keep it changed often, every 5k is advised, clean oil is always best bet for long engine life.

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