Oil filter K&N or VALVOLINE

valvoline and oem filter

I’ve found them to be good

Filter Used : K&N HP-1008 (has a nut built into the filter for a 1" socket; recommended)

I have used K&N oil filters my entire life and never once had one leak from the nut portion of the filter housing

I run K&N filters and mobil-1 5W-30 at 350k km

I have been unfortunate enough to be underneath a customers car, taking the oil filter off, when they decided to fire it up. If that Valvoline didn't put the filter on right, you would have known driving home not In a month.

Engine carbon cause the dirty looking oil no filter can get rid of the carbon color and I don't wait 5000 miles I change every month but put on 500 km every week highway also your oils detergents could have cleaned some crap from engine I would do a change sooner myself am switching to Pennzoil ultra platinum 5w 30 and k&n gold for maximum flow rate/ oil pressure and 30 micron rating (70 micron is human hair) year round I've got about 335,000 km on Buick Lucerne 3800 series and aiming for 500,000 I used wix XP for years bought bulk from rockauto and got carbon black every change including my ram1500 only 150,000 km highway

I have pulled multiple K&n filters out that have looked a little bent like this. The smashed K&n is definitely shorter.

Their most recent mistake cost me my entire vehicle. They put my oil filter cover on without an oil filter. This caused debris from less than three months to create enough friction to blow a piston arm in my engine.

First and only time i tried a k&n filter the bypass valve did not open and oil sprayed everywhere .I Will never try one again.