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AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil

Product code : AROQTC-EA

  • High-zinc formula guards against wear
  • Ideal for flat-tappet cams
  • Resists deposits to help keep engines clean
  • Convenience of use for gas and diesel engines

AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil



AMSOIL Premium Protection Synthetic Motor Oil is formulated to provide superior protection and performance in a wide variety of demanding applications. Its unique combination of synthetic base oils and a superior additive package results in a formulation that exceeds the requirements of most gasoline or diesel applications that call for 10W-40 or 20W-50 motor oil. Premium Protection Synthetic Motor Oil is ideal for high-mileage vehicles and high-stress vehicles subject to hot temperatures, heavy hauling, trailer pulling or off-road use. It provides the extra anti-wear protection required by engines with flat-tappet cams and high-tension valve springs. AMSOIL Premium Protection Synthetic Motor Oil offers flexibility and performance beyond conventional oils.

AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your engine.

  • High-zinc formula guards against wear
  • Ideal for flat-tappet cams
  • Resists deposits to help keep engines clean
  • Convenience of use for gas and diesel engines

Superior Wear Protection
Premium Protection Synthetic Motor Oil is high-viscosity oil engineered to protect against metal-to-metal contact. It resists viscosity loss due to shear and is formulated with a heavy treatment of zinc and other anti-wear additives for excellent protection of gears, bearings, cam lobes and other high-pressure components in engines and transmissions. Premium Protection Synthetic Motor Oil helps extend equipment life.

Wet-Clutch Compatible
Premium Protection Synthetic Motor Oil contains no friction modifiers, making it ideal for motorcycles, maintenance equipment and other wet-clutch transmission applications. Formulated to prevent clutch glazing and slippage, it helps ensure smooth clutch engagement and long-term, dependable transmission operation. Premium Protection Synthetic Motor Oil reduces clutch wear for extended transmission life.

Resists Oxidation and High-Temperature Breakdown
Premium Protection Synthetic Motor Oil is formulated to overcome the thermal deficiencies common to conventional petroleum oils. Volatilization (burn-off), oxidation and excessive deposit formation from high heat are greatly reduced. Viscosity thickening is controlled and engines run cleaner, promoting cooler operation and long engine life in air- or liquid-cooled engines. In addition, the higher viscosity of AMSOIL 20W-50 Synthetic Motor Oil may help reduce motor oil consumption in equipment that experiences higher-than-normal usage rates when lower-viscosity lubricants are installed.

Extends Drain Intervals in Gasoline and Diesel Engines
Superior synthetic base oil and additive technology exceeds the requirements of both gasoline and diesel engines. Premium Protection Motor Oil is designed to neutralize acids, disperse soot and last longer in service than conventional oils.

APPLICATIONS
AMSOIL Premium Protection Synthetic Motor Oil is recommended for air- and liquid-cooled, large or small gasoline and diesel engines, transmissions and chaincase applications where 20W-50 oils are required with any of the following specifications:

  • API SL, SJ, SH, SG
  • API CI-4+, CI-4, CH-4, CF, CF-2
  • ISO-L-EMA
  • Caterpillar* ECF-1
  • JASO MA (Motorcycle)
  • MAN* 271/3275
  • MTU Type 2
  • Cummins* 20071/20072/20076/20077
  • Volvo*, VDS-2, VDS
  • Mack* EO-M+, EO-M
  • ACEA A3/B3, E3, E5
  • MB 228.1,228.3, 229.1
  • Detroit Diesel* 93K214

MIXING AMSOIL
AMSOIL Synthetic 20W-50 Premium Protection Motor Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oils, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL Synthetic Oils.

SERVICE LIFE
AMSOIL Synthetic 20W-50 Premium Protection Motor Oil is recommended for extended intervals in unmodified, mechanically-sound vehicles or equipment as follows:

Diesel Engine Service
–Normal Service - Up to 40,200 kilometers or one year, whichever comes first, or longer based on oil analysis.
–Severe Service - Up to 24,000 kilometers or one year, whichever comes first, or longer based on oil analysis.

Gasoline Engine Service
–Normal and Severe Service - Up to 24,000 kilometers or one year, whichever comes first, or longer based on oil analysis.

Motorcycles, Small Engines, Stationary Engines, Heavy Equipment and Other Applications
–Extend drain intervals based on oil analysis or follow the manufacturer-recommended drain interval.

AMSOIL Full-Flow Oil Filters are designed for extended drain intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Ea Full-Flow Oil Filters and replace at the time of oil change. Other oil filters should be changed at standard OEM* intervals.

*OEM - Original Equipment Manufacturer

OIL ANALYZERS INC., 715-395-0222, is a division of AMSOIL that provides cost-effective, quality oil analysis services. For more information on product applications and service life, refer to the AMSOIL Product Recommendation and Drain Interval Guide (G1490).

AMSOIL PRODUCT WARRANTY
AMSOIL products are backed by a Limited Liability Warranty. For complete information, visit www.amsoil.ca/about/guarantee/.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.ca or upon request at (715) 392-7101. Keep Out of Reach of Children. Don't pollute. Return used oil to collection centers.

* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil

Data Bulletin

Warranty

SDS



AMSOIL Premium Protection 20W-50 100% Synthetic Motor Oil

  • 5 star rating
    Jeep
    By  SMP,  a  Verified Buyer  from  Lowell Arkansas   on  February 26, 2024
    Great high zinc oil for my jeep. Runs quieter and better for my engine.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Oil
    By  Targa Eng,  a  Verified Buyer  from  Florida  on  February 13, 2024
    Been using this for many years in older air cooled flat tappet Porsche engines. Does well on the track and retains good test sample numbers for surprisingly long drain intervals.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best oil there is.
    By  PAUL,  a  Verified Buyer  from  Pasco Washington  on  December 24, 2023
    Never have a problem receiving my order. The best oil I have ever used. It is All my Vehicles from the 401 Ford 5-40 diesel to the 10-40 400 ford and my LTD 460. I use the 5-30 in my 5.4 Expedition. In my Hondas 10-40 and Harleys,v twin 20-50 they run much cooler which to me means Much less friction. My V twin cam went from 38 mpg to over 45 and at times 50 mpg. That is unheard of on a Electraglide ultra 96 CID twin cam. But, that is what it got on a road trip. Yes, much less friction.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    8.1 L pulling 26,000 lbs not a problum
    By  GEORGE,  a  Verified Buyer  from  On the Road  on  December 20, 2023
    I would use their filter if they made a two qt for a Chevy V8 8.1 L in my RV (NAPA Gold 1794)
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    A+++ oil
    By  Georgi,  a  Verified Buyer  from  Wichita, KS  on  November 26, 2023
    So far things are running great, this is the first time using the oil, definitely won't be the last!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Marine Application
    By  WILLIAM,  a  Verified Buyer  from  Lake of the Ozarks  on  November 11, 2023
    I have been using this product in the 5.7 Liter Engine of my 2002 Crownline 225 boat for well over a decade. The boat stays on a lift so always exposed to a high moisture environment. I take pride in how great my 20 year old boat looks. With Amsoil, it runs as good as it looks!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great stuff
    By  JASON,  a  Verified Buyer  on  August 20, 2023
    This oil by far is the best oil for a performance standpoint.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Oil review
    By  KEN,  a  Verified Buyer  from  Maple Ridge  on  August 05, 2023
    I've used Amsoil products 1998 and never had a failure due an Amsoil product. Owned gas and diesel engines, motorcycles, Motor Homes, generators, trucks and passenger vehicles and always had confidence in Amsoil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Premium Protection 10W-40 Synthetic Motor Oil
    By  Eugene,  a  Verified Buyer  from  Brooklyn, NY  on  June 21, 2023
    Excellent quality motor oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good stuff
    By  PHILIP,  a  Verified Buyer  on  May 17, 2023
    Best for older vehicles!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?