K&N Premium Wrench-Off Oil Filter

Marsoni

M251S

$17.99

Get it in 3 business days with 1 day shipping. Friday, May 29

K&N Premium Wrench-Off Oil FilterSKU: HP 1021 UPC: 024844390370 K&N Premium Wrench Off Oil Filter HP 1021 for 2019 2025 Chevrolet Silverado 1500 GMC Sierra 1500 Cadillac XT4 XT5 K&N HP 1021 oil filter delivers precise filtration for GM vehicles equipped with M22x1. 5 threaded engines including 2019 2025 Chevrolet Silverado 1500 RST WT ZR2, GMC Sierra 1500 SLT AT4, Cadillac XT4 Premium Luxury Sport and more. Pleated synthetic blend media traps contaminants while maintaining high oil

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Used it as directed. Down to an eighth of a tank. Poured it in and added enough gas to get back to one half a tank. Wanted to get it mixed in really well. Immediately jumped on the interstate and ran 75 MPH for 40 miles. Stopped and filled the tank and when I restarted the engine, the light was off. Coincidence? Not a chance. Light had been on continuously for weeks. AutoZone said I needed a catalytic converter. Nope. One thing I found out the hard way. If your gas filler has a flap at the top, make sure it is easy to push aside. Mine had a little release button near the top that the filler hose would depress before the flap would release. Dumped the first bottle right on the ground. Twelve bucks wasted. No one to blame but me, I guess. Still a bargain, even at twice the price.

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Reviewed in the United States on February 17, 2026