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See how AMSOIL products perform in the lab and in the field.

Consumers have the freedom to choose other than OEM branded lubricants without fear of voiding the original limited or implied warranty. Amsoil synthetic lubricants and performance products are tough, reliable, long lasting, and save you time and money with the peace of mind that your vehicles/ equipment will last longer. About Warranty Secure

By-Pass filtration

Bypass filtration systems have been around for decades and now standard additions for some new engine designs. The AMSOIL Bypass filter systems are simplistic in design, allow for easy installation, easy to find replacement parts and replacement filter elements. Additional filtration is most important for diesel engines to remove soot from the engine oil. Clean oil means oil additives do not deplete as quickly, effectively extending the life of diesel oil protection. The truth is, oil doesn’t wear out, it become dirty… too dirty for the additives to defend the lubricity of the oil and protect critical engine parts.

Mobil Oil Bulletin No. 863;

“Oil does not wear out, breakdown or otherwise deteriorate to such an extent that it needs to be changed. It becomes contaminated with water, acids, carbon particles and sludge”

Determined by oil analysis, a synthetic or non-synthetic oil’s life can be safely extended several times longer than regular oil change intervals. Installation of AMSOIL Bypass systems keeps oil analytically clean resulting in both immediate and longer term cost savings with less required oil servicing and longer mileage between engine’s rebuild.

Decrease Maintenance Cost

  • Increase oil life with continues oil filtration (oil is always clean)
    o Filter 100% of sump oil several times per hour
    o Clean oil can remain in service longer (determined by oil analysis)
  • Less oil changes = more time & money for proactive maintenance
  • Keep trucks on road longer between engine rebuild
  • Easy to replace filter spin on canister -means no oil spill
  • The AMSOIL Bypass filter pays for itself by extending oil service life
  • Filter element service life (specific to filter size) starting at 60,000 miles/100,000 kms (or) One year.

Prolong Engine Life

  • Finer filtration removes wear causing contamination
    o Superior Bypass filtration can increase engine life up to 8X’s longer
  • Continuous protection… when the engine is running, the oil is being filtered
  • AMSOIL Bypass filter clean synthetic and non-synthetic engine oils
  • Best performance and power efficiently keeping engine like new
  • Units can be installed on any diesel or gasoline engine
  • Filter element have an absolute efficiency of 98.7 percent at two microns rating, removing all the particles known to reduce engine life.

AMSOIL EaEa® Bypass Oil Filter (Spin-On Element) Service Life

AMSOIL Ea® Bypass Filters are a composite design of cellulose and synthetic media that provide for much finer particle filtration and longer service life. Filters have an absolute efficiency of 98.7 percent at two microns rating, removing all the particles known to reduce engine life.

AMSOIL Engine Oil Bypass Filter UnitesFor Diesel and Gasoline engines AMSOIL Bypass Spin-On Element stock number Filter Length(Use maximum filter length when space provides) Crankcase Capacity** Element Service Life
Distance
(Miles/ KMS)
Hours Time
Single Spin-On Element
Dual Remote system BMK21
(uses one full-flow and one Bypass element)
EaBP90 6.0” Up to 15 quarts/ 3.75 gallons 60,000/ 100,000 600 2 Year
EaBP100 7.5” Up to 18 quarts/ 4.5 gallons 70,000/ 115,000 800 2 Year
EaBP110 10.44” Up to 24 quarts/ 6 gallons 80,000/ 130,000 1,200 2 Year
Dual Spin-On Element
BMK22 System
(uses two bypass filter elements)
(2) EaBP90 5.78” Up to 30 quarts/ 7.5 gallons 60,000/ 100,000 600 2 Year
(2) EaBP100 7.25” Up to 36 quarts/ 9 gallons 70,000/ 115,000 800 2 Year
(2) EaBP110 10.5” Up to 48 quarts/ 12 gallons 80,000/ 130,000 1,200 2 Year
Spin-On Element
*Only fits BMK30 mount
EaBP120 12.5”* Up to 60 quarts/ 15 gallons 120,000/ 200,000 1,800 1 Year

**Filters can be used on sumps of larger capacity but may require more frequent element replacement, as determined by oil analysis.

Bypass Filter Systems: Specific Applications

Universal Single Remote Bypass System

Universal Applications Including and Diesel or Gasoline engines

BMK21
(Optional)

Not included in kit:

  • BP89

Parts list & installation Guide

Oil Supply

Locate oil pressure sending unit or another pressurized port on the engine. Remove pressure sending unit and install BP33 “Tee Fitting”

Oil Return

Existing Port Options: Most engines have oil return openings in the crankcase wall or oil pan.

New Port Options: new ports can be created with self-tapping hollow bolt (BP40) return oil through the oil pan or a rocker arm/valve cover. (OR) swivel fitting (BP89) returns through oil filler cap.

Bypass filter Element Options

(sold separately)

Full Flow Filter: N/A

Universal Dual Remote Bypass System

Universal Applications Including and Diesel or Gasoline engines

Parts list & installation Guide

Oil Supply

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (sold separately)

Find the correct Spin-On Filter Adapter for your engine with the:
Bypass Spin-On Filter Adapter (cross reference)

Oil Return

AMSOIL Spin-On Adapter Full-Flow Filter Mount

Bypass filter Element Options

(sold separately)

Full Flow Filter: EaO26 (sold separately)

Heavy-Duty Bypass System

Designed for larger applications found in business-class trucks, over-the-road trucks, agricultural and stationary industrial.

BMK30
(Optional)

Not included in kit:

  • BP89
  • BP40

Parts list & installation Guide

Oil Supply

Locate oil pressure sending unit (or another pressurized port on the engine). Remove pressure sending unit and install BP33 “Tee Fitting”

Oil Return

Existing Port Options: Most engines have oil return openings in the crankcase wall or oil pan.

New Port Options: new ports can be created with self-tapping hollow bolt (BP40) return oil through the oil pan or a rocker arm/valve cover. (OR) swivel fitting (BP89) returns through oil filler cap.

Bypass filter Element Options

(included)

Full Flow Filter: N/A

Dual-Gard Bypass System

Designed for larger applications found in business-class trucks, over-the-road trucks, agricultural and stationary industrial.

BMK22
(Optional)

Not included in kit:

  • BP89
  • BP40

Parts list & installation Guide

Oil Supply

Locate oil pressure sending unit (or another pressurized port on the engine). Remove pressure sending unit and install BP33 “Tee Fitting”

Oil Return

Existing Port Options: Most engines have oil return openings in the crankcase wall or oil pan.

New Port Options: new ports can be created with self-tapping hollow bolt (BP40) return oil through the oil pan or a rocker arm/valve cover. (OR) swivel fitting (BP89) returns through oil filler cap.

Bypass filter Element Options

(sold separately)

Full Flow Filter: N/A

Dodge Cummins5.9/6.7L Single Remote Bypass System

Specific Kit for Dodge

BMK34
(Optional)

Not included in kit:

  • BK1104

Parts list & installation Guide

Oil Supply

Existing Port Options: Oil filter housing 1/8”NPT plug.

AMSOIL Spin-On Adapter Full-Flow Filter Mount (BK1104)

Oil Return

AMSOIL Aluminum Oil Cap with swivel fitting (BK1303)

Bypass filter Element Options

(included)

Full Flow Filter: N/A

GM 6.6L Single Remote Bypass System

Specific Kits for GM

BMK32
(Optional)

Parts list & installation Guide

Oil Supply

AMSOIL Spin-On Adapter Full-Flow Filter Mount (BK1201)

Oil Return

AMSOIL Aluminum Oil Cap with swivel fitting (BK1202)

Bypass filter Element Options

(included)

Full Flow Filter: N/A

GM 6.6L Dual Remote Bypass System

Specific Kits for GM

BMK27
(Optional)

Parts list & installation Guide

Oil Supply

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Oil Return

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Bypass filter Element Options

(included)

Full Flow Filter: EaO26

Ford 7.3L Dual Remote Bypass System

Specific Kits for FORD

BMK26
(Optional)

Parts list & installation Guide

Oil Supply

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Oil Return

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Bypass filter Element Options

(included)

Full Flow Filter: EaO26

Ford 6.7L Dual Remote Bypass System

Specific Kits for FORD

BMK28
(Optional)

Parts list & installation Guide

Oil Supply

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Oil Return

AMSOIL Spin-On Filter Adapter
Full-Flow Filter Mount (BP420)

Bypass filter Element Options

(included)

Full Flow Filter: EaO26

Ford 6.0/ 6.4L Single Remote Bypass System

Specific Kits for FORD

BMK31
(Optional)

Parts list & installation Guide

Oil Supply

Replace OEM Oil Filter Cap Housing with AMSOIL (BK1101) Oil filter Cap

Oil Return

AMSOIL Aluminum Oil Fill Cap with swivel fitting (BK1102)

Bypass filter Element Options

(included)

Full Flow Filter: N/A

Ford 6.7L Single Bypass System

Specific Kits for FORD

BMK33
(Optional)

Parts list & installation Guide

Oil Supply

AMSOIL Filter Adapter to Full-Flow Filter Mount (High pressure oil supply only) (BK1104)

Oil Return

AMSOIL Aluminum Oil Cap with swivel fitting (BK1203)

Bypass filter Element Options

(included)

Full Flow Filter: N/A

Assembly Bypass Spin-On Filter Adapters (Cross Reference)

Spin-On Filter Adapter

Not every vehicle is the same, and engine layout is different for every vehicle make and model. AMSOIL’s patented design Spin-On Filter Adapter fits on the engine’s full-flow filter mount. The adapter provides both high pressure oil port from the engine to Bypass mount assembly and return clean oil to engine sump through the same adapter. No modifications are required, the adapter can be easily removed and replaced with the full-flow filter at any time. With both supply and return oil lines in place… the Bypass filter mount can now be located in any desired location.

Use the ASMOIL Look-Up to determine the full-flow filter that would fit your engine (year, make and model), then choose the “Spin-On Filter Adapter” that fits your engine. Adapters work with the BMK23 Universal Dual Remote Bypass System.

AMSOIL Full Flow that fits your engine Full Flow Thread This Adapter fits your engine’s full-flow filter mount
EaO11 M22 x 1.5 BK299
EaO15 3/4 – 16 BK295
EaO17 M22 x 1.5 BK299
EaO23 M18 x 1.5 BK297
EaO24 13/16 – 16 BK302
EaO26 3/4 – 16 BK295
EaO34 3/4 – 16 BK295
EaO38 3/4 – 16 BK295
EaO42 3/4 – 16 BK295
EaO52 13/16 – 16 BK300
EaO59 13/16 – 16 BK302
EaO64 13/16 – 16 BK302
EaO98 1 – 16 BK300
EaO99 1 1/2 – 16 BK301
Ea15k29 M18 x 1.5 BK297
Ea15k32 13/16 – 16 BK296
Ea15k50 M22 x 1.5 BK299
Ea15k51 3/4 – 16 BK295
Ea15k53 3/4 – 16 BK295
2008 – Present Chevrolet 1500 & 2500 Gas Engines M22 x 1.5 BK310

BMK23 Universal Dual Remote Bypass System

Bypass filter element choice:

and full-flow (AMSOIL EaO26), purchased separately

Easy Installation: fairly easy to install requiring tools common to automotive technicians.

Single Remote System

  • Oil high pressure supply line from Bypass Spin-On Filter Adapter (patented AMSOIL design), or high pressure oil supply such as the pressure sending unit port.
  • Oil return line through the Bypass Spin-On Filter Adapter, oil filter cap (patented AMSOIL design), or a low pressure port on the engine.
  • Bypass filter mount can be located in any desired location away from potential road debris and requires six to eight feet (or less), of supply and return lines.

Dual Remote System: BMK23, BMK26, BMK28 and BMK27

  • Dual remote systems allow for both full-flow and Bypass oil to be located in easier service access location.

Installation: AMSOIL Bypass Oil Filtration System

Maintenance Practice When Using AMSOIL Bypass, Any Other Brand Oil and an Oil Analysis Program

For light and heavy-duty diesel or gasoline engines using full-synthetic or non-synthetic engine oils;

  • Specified by the OEM oil change interval: change the standard OEM full-flow filter and take an oil sample for analysis. The oil is not changed unless recommended in oil analysis report.
  • The engine oil remains in service until a subsequent oil analysis, each taken at the OEM next drain interval, specifies “oil no longer suitable for use”, while the full-flow filter is changed at regular OEM oil change intervals.
  • The AMSOIL Bypass Filter element can remain in service until its element life is depleted, or when the oil is changed determined by the oil analysis report.

AMSOIL Bypass and AMSOIL Synthetic Oils

When using AMSOIL Synthetic oils for light and heavy-duty diesel or gasoline engines,

  • The first oil sample can be taken one OEM drain interval prior to AMSOIL’s product recommended service life.
    AMSOIL’s extended drain intervals (if applicable) are product specific and listed in each of the AMSOIL Data Bulletins.
  • Subsequent oil samples should be taken as per the earlier oil analysis report recommended interval, typically the next OEM drain interval.
  • The engine oil remains in service until it fails to pass the analysis test and “oil is no longer suitable for use”.
    It is common to see engine oil last longer than AMSOIL’s published recommended interval, due to its robust additive package designed for extended drain intervals without a Bypass system.
  • The AMSOIL Bypass Filter element can remain in service until its element life is depleted, or when the oil is changed determined by the oil analysis report.

When an oil analysis program is not in use (with AMSOIL Synthetic Oils), drain engine oil at AMSOIL’s recommended service interval and change both bypass element and full-flow filter.

OEM Warranty

This practice of using a bypass filter system is quite different from the “drive and drain” intervals most motorist are accustom. The truth is, oil doesn’t wear out, it become dirty… too dirty for the additives to defend the lubricity of the oil and protect critical engine parts. By keeping the oil clean with a Bypass Filter System, the life of any oil, full-synthetic or non-synthetic, can be increased several times longer than the standard OEM oil change. The oil analysis report and subsequent reports provide OEM’s with the information they need to determine if an engine failure was caused by; the engine oil?, or a manufacture’s defect? The AMSOIL Bypass Filter Systems will not void an OEM warranty when using standard oils and an oil analysis program.

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