This OG Titanium was used for two 3K mile oil changes on my 2018 Harley Tri Glide. The first oil run was VR1 conventional 20W-50 and the second was M1 15W-50. The filter looks good. Not really much of a ripple/ridges on the leaf spring. The silver particles in the filter are from cuttings the filter with a hacksaw. Mobil 1 V-Twin 20W-50 went back in along with an STP Extended Life oil filter, P/N: S3600XL.