This is a genuine Amsoil EAO80.
-Ea Oil Filters provide a filtering efficiency in accordance with industry standard ISO 4548-12 of 98.7 percent at 20 microns.
-Ea Filters designated with product code Ea15K are recommended for 15,000 miles/one year, whichever comes first, in normal or...
Before installing this K&N cold air intake with Amsoil air filter, I was getting 11-12 mpg while pulling my 8000 lb 30ft travel trailer.
After installing this unit, I averaged 14-15 mpg while pulling the same load.
I've noticed great mpg gains while under a load, but minimal while running dry.
I installed this bypass oil filter with Amsoil 15w40 synthetic oil on my '06 2500 cummins and gained 2 mpg. Install took about 15 minutes. Visit my site if your interested in more info: