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Tom · 11-17-2006

K&N, Mobil 1, STP and Bosch filters at one time were all made by the same company (Champion Labs) to the respective companies requirements. I haven't looked at the current Bosch or STP filters, but the K&N and Mobil 1 filters look like the same filter except for the hex added to the end of the K&N filter.

Also, I had one K&N filter that had threads that were very loose and looked like they had been tapped twice, so now I look at the threads on any filter I plan to buy.

11-17-2006	#24
Tom Join Date: Jan 2004 Location: Southern CA Posts: 108	Re: Oil Filters K&N, Mobil 1, STP and Bosch filters at one time were all made by the same company (Champion Labs) to the respective companies requirements. I haven't looked at the current Bosch or STP filters, but the K&N and Mobil 1 filters look like the same filter except for the hex added to the end of the K&N filter. Also, I had one K&N filter that had threads that were very loose and looked like they had been tapped twice, so now I look at the threads on any filter I plan to buy. Last edited by Tom; 11-17-2006 at 10:14 AM.