Nissan 370Z Forum - View Single Post - First oil change coming up, need some advice.

G35guy84 · 04-09-2010, 01:30 PM

Getting back to the purpose of the thread and away from opinionated comments, where do K&N and Royal Purple fit into the oil filter mix in terms of quality?

I know AK bought K&N and a few others like that particular brand, but I was leaning more toward buying Amsoil or Royal Purple. To me, both look like quality filters, but I'm no expert.

Also, I can't find Royal Purple's API group number anywhere. I've heard that it's in group IV, but I've also heard it's in group V. However, I also read that Group V oils are reserved for air compressors and similar motors because they're not compatible with petroleum-based fuels and can actually damage auto engines.

04-09-2010, 01:30 PM	#27 (permalink)
G35guy84 Enthusiast Member Join Date: Aug 2009 Location: New York Posts: 305 Drives: '09 370Z 7AT Sprt PW Rep Power: 16	Getting back to the purpose of the thread and away from opinionated comments, where do K&N and Royal Purple fit into the oil filter mix in terms of quality? I know AK bought K&N and a few others like that particular brand, but I was leaning more toward buying Amsoil or Royal Purple. To me, both look like quality filters, but I'm no expert. Also, I can't find Royal Purple's API group number anywhere. I've heard that it's in group IV, but I've also heard it's in group V. However, I also read that Group V oils are reserved for air compressors and similar motors because they're not compatible with petroleum-based fuels and can actually damage auto engines. __________________ '09 Nissan 370Z Base 7AT - Sport Package - Pearl White \| Performance Mods: Stillen G3 CAI \| F.I. HFC \| F.I. TDX CBE w/ 18" resonators \| Megan Racing coilover kit \| Ichiba rear camber kit \| 20mm front / 25mm rear H&R spacers \| Aesthetic Mods: White interior/license plate LEDs \| 6000K bulbs \| 20% tint