Originally Posted By: Donald
Originally Posted By: ltslimjim
Bosch D+ is still paper blend, IIRC?
From AAP site regarding D3312 for my app:
Quote:
Media: Synthetic and Cellulose Blend
...though they also state
Quote:
Micron Rating: 40 mc
On the other hand, Royal Purple has advertised 'flow', but I don't know. 99% filtration at 25μm is good enough for most cars with Full Flow filtration.
The Napa definitely is fully synthetic media.
K&N may be the same as M1 to the eye, but K&N pushes 'high flow rates', so it's really take your pick. I doubt any of the choke or starve your engine of oil.
NAPA Gold is 100 synthetic? Or another NAPA filter?
NAPA Platinum is full synthetic.