Oil filter AC DELCO or Mobil

I've always used Castrol bit my buddy swears by Mobil 1. I personally think that most name brand full synthetic oils are pretty similar. Not all filters are created equal though. I like wix xp but Mobil 1 makes great filters too

It's been a year since I changed mine and several thousand kms and I haven't had any warning lights or problems since. I used a Mobil 1 Extended Performance Filter M1C-451.

it was the Oil filter cartridge o ring that had become hard and did not compress to seal the filter any longer. Getting the new one, a mobile 1 filter, I could immediately tell the difference. the new one was pliable and I could tell it would seal nicely. it did...no more leak. The car also had developed a slight stutter at idle. very sensitive, these cars. the stutter is gone too.

So glad I found this post! I was getting the low oil pressure warning on my 2012 Passat. It would go away after the car warmed up. I changed the oil, dropped the oil pan and cleaned it and the pickup tube. They were already in really good shape. I changed the oil filter too of course. Anyway the light isn't coming on at all now.

I ran Mobil 1 filters on my '05 Xterra because I picked up several M1 oil change specials at one of the parts stores and found the truck sounded better at idle so I kept using them.

Mobil 1 M1-108's for the Infiniti/my wife's Legacy. And the Extended Performance oil along with it. Been doing slightly extended drain intervals on multiple vehicles for close to 15 years with no ill effects. Valvetrains are exceptionally clean on any of the previous vehicles where i've pulled the covers.

I have recently switched back from a K&N to a Mobile 1 oil filter. It seems to be better no ticking noise.

Personally I run synthetic oil 7000 miles(I have had it tested at Blackstone labs and the results show it's still good at that time) before I change it and I change it and the filter(very important) at that time.

I'd like to add that the oil pressure appeared normal after installing the Mobile 1 filter. The Mobile 1 filter is about half an inch longer than the RE filter, and I read that different sized oil filters can cause the oil pressure to drop, but my indicator was not lit during any of my test riding.

I wanted to give you guys a little insight on my recent discovery. I have always changed my oil @ 10K miles, using mainly pentosin and Hengst or mann filters. On occasion when I don't have time to wait for oil to ship to me, I've used German Castrol and autozone filters (either STP, Fram or Mobil 1). The picture below is what my mobil 1 oil filter looked like after 9K miles w/ German Castrol. Mind you I have NEVER had a Hengst/Mann/Fram/STP look like this when changing my oil. Another tid bit of info, My oil was much blacker this oil change than it has ever been.