Understanding Beta Rating?

Joined
Dec 10, 2006
Messages
346
Location
Idaho
I have 2 Wix oil filter options for my '96 Trooper. 51334 has a Beta rating of 2/20=22/40 51356 has a Beta rating of 2/20=6/19 Which is the better beta rating and why? Thanks, Rob
 
Joined
Mar 17, 2008
Messages
7,250
Location
Michigan
# 2 is better. 2/ = 50%. So # 2 filters 50% of particles 6 microns and larger. 20/ =95%. So # 2 filters 95% of particles 19 microns and larger. The second set of numbers in the ratio is where you would like to see lower numbers. ** Do you have or want to use a Wix? While they are great filters the Purolator Pure One filters better.
 
Last edited:
Joined
Mar 2, 2009
Messages
2,371
Location
WA
 Originally Posted By: BoiseRob
I have 2 Wix oil filter options for my '96 Trooper. 51334 has a Beta rating of 2/20=22/40 51356 has a Beta rating of 2/20=6/19
What's strange to me is why are two filters that supposedly use the same filtering media have different beta ratios? There's a big difference between 19 and 40 micron sized particles.
 
Joined
Sep 28, 2002
Messages
39,802
Location
Pottstown, PA
Assuming the can volume is consistent with media area ..the difference would probably produce that difference in filter efficiency ..and it may not be the same media Part Number: 51334 (26c.i.) UPC Number: 765809513341 Principal Application: Acura (88-05), Chevrolet (85-88), Dodge (91-96), Ford (88-96), Honda (72-09), Hyundai (89-09), Isuzu (85-04), Kia (01-09), Mercury (87-91), Mitsubishi (89-98), Subaru (87-09) Atlas-Copco, Case, John Deere, Kobelco, Komatsu, Kubota, Onan, Toro & Yanmar Diesel, Other All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 3.194 Outer Diameter Top: 3.252 Outer Diameter Bottom: Closed Thread Size: 20X1.5 MM By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=22/40 Burst Pressure-PSI: 280 Max Flow Rate: 9-11 GPM Nominal Micron Rating: 19 Gasket Diameters Number O.D. I.D. Thk. Attached 2.475 2.173 0.233 Part Number: 51356 (19c.i.) UPC Number: 765809513563 Principal Application: Acura (02-09), Chrysler Imports (92-06), Ford Probe (93-97), Honda (01-09), Infiniti/Nissan (96-09), Mazda (71-00), Mercury Villager (99-00), Mitsubishi (90-09), Saturn (04-07), Outboard Marine Engines, Various HD Equip. All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 3.402 Outer Diameter Top: 2.685 Outer Diameter Bottom: Closed Thread Size: 20X1.5 MM By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=6/19 Burst Pressure-PSI: 363 Max Flow Rate: 9-11 GPM Nominal Micron Rating: 19 Gasket Diameters Number O.D. I.D. Thk. Attached 2.475 2.173 0.23 Here I assume the same media ..with an expected reduction in rate of return as you go bigger. Eventually you have quite a few more large pores in the distribution. Part Number: 51348 UPC Number: 765809513488 Principal Application: Various Chrysler/Jeep (82-09), Various GM, Saturn (85-07), Lexus (90-09), Saab (67-09), Suzuki (86-02), Toyota (88-09), Ford (03-09), Mazda, Mercury (05-09), Yugo (86-89), Harley-Davidson, Various Lawn&Garden, Farm Equip. All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 3.404 Outer Diameter Top: 2.921 Outer Diameter Bottom: Closed Thread Size: 3/4-16 By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=21/37 Burst Pressure-PSI: 275 Max Flow Rate: 7-9 GPM Nominal Micron Rating: 19 Gasket Diameters Number O.D. I.D. Thk. Attached 2.734 2.430 0.226 Part Number: 51516 UPC Number: 765809515161 Principal Application: Ford/Lincoln/Mercury (81-09), Chrysler/Jeep/Mitsubishi (02-09), Mazda Trucks (94-07) All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 4.828 Outer Diameter Top: 2.921 Outer Diameter Bottom: Closed Thread Size: 3/4-16 By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=14/31 Burst Pressure-PSI: 275 Max Flow Rate: 7-9 GPM Nominal Micron Rating: 20 Part Number: 51068 UPC Number: 765809510685 Principal Application: Agco Tractors, Chrysler (70-91), Ford/Mercury (83-97), Kubota Engines, Land Rover (95-04), Toyota (68-90) All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 4.338 Outer Diameter Top: 3.660 Outer Diameter Bottom: Closed Thread Size: 3/4-16 By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=10/26 Burst Pressure-PSI: 275 Max Flow Rate: 7-9 GPM Nominal Micron Rating: 19 Gasket Diameters Number O.D. I.D. Thk. Attached 2.834 2.462 0.200 Part Number: 51515 UPC Number: 765809515154 Principal Application: Chrysler Family of Cars/Trucks (57-70), Ford Family of Cars/Trucks (57-00), Mazda Trucks (94-00), Toyota Landcruiser (71-96) - (Two Quart version is 51773) All Applications Style: Spin-On Lube Filter Service: Lube Type: Full Flow Media: Paper Height: 5.178 Outer Diameter: 3.660 Thread Size: 3/4-16 By-Pass Valve Setting-PSI: 8-11 Anti-Drain Back Valve: Yes Beta Ratio: 2/20=13/23 Burst Pressure-PSI: 290 Max Flow Rate: 7-9 GPM Nominal Micron Rating: 19 Gasket Diameters Number O.D. I.D. Thk. Attached 2.834 2.462 0.200 Gasket Diameters Number O.D. I.D. Thk. Attached 2.734 2.430 0.226
 
Top