Nuke

I failed to mention that now that I'm driving the Stang well less than 10k miles/year, I'm changing the synthetic oil on a time basis; 1 year; and because of the reduction in mileage over what I USED to drive her annually, I'm now using the Motorcraft filter. My SUV, on the other hand, is on 8k-10k miles (depending on how much of those miles were spent towing which can often be easily 10-20% or more) gets M1 filters until my stock runs out, and then it's the Amsoil Ea.

PNYXPRESS

Running the oil 10k+ miles isn't a big deal but running an oil filter that long is. The filter needs to be changed out on a more frequent basis as it is where particles are being stored when caught

As long as you change the filter on a regular basis you can get away with a cheaper filter.

With that said I change my oil every 10k miles and the filter every 5k miles

Nuke

From the Amsoil website:
I was using the EaO filters and I would have had no problem running well beyond 10k miles on both the oil AND filter when I was using Amsoil in the Stang. A 10k mile frequency was a conservative choice, IMO.

PNYXPRESS

They may be able to go that long but how clogged with gunk are they going to get from the stuff they filter out prohibiting oil flow. And if it doesn't affect flow then what kind of stuff are they not filtering out?

I'm not a expert on the subject but common sense says that stopping debris will stop flow over time.

RetiredSFC 97

My Mechanic, who I trust completely with my cars, won't use anything but a Wix oil filter. But there are quality oil filters out there.

Goldenpony

I'm guessing most all filters would do a reasonably good job over the short run (maybe up to 5K miles). The super premium filters do their magic over longer oil change cycles, like 10K to 15K miles.

tx_zstang

I use the Motorcraft; at under $4 at walmart, you can't beat the price for a top-quality filter that our engines were designed to use.