Purchasing AMSOIL Products
How can I purchase AMSOIL products?
How can I locate an AMSOIL Dealer?
How long have AMSOIL lubricants been on the market?
Synthetic Oil Basics and Switching From Petroleum to Synthetic
Can synthetic oil be used in new engines?
Must new cars be broken in using petroleum oil?
Why is there a miles and time limit with respect to oil change intervals?
Will synthetic motor oils cause engines to leak oil?
Can AMSOIL motor oils be mixed with other brands?
What kind of base stocks does AMSOIL use? Are AMSOIL synthetic lubricants PAO-based?
What is AMSOIL Synthetic Blend Heavy Duty Diesel Oil?
Why are AMSOIL engine oils capable of extended drain intervals?
Will AMSOIL motor oils decrease oil consumption?
Is there a recommended procedure for changing to AMSOIL motor oil?
How do AMSOIL motor oils compare to other motor oils?
What are “normal” and “severe” driving conditions?
Motor Oil: Gasoline Auto and Light Truck
Are AMSOIL motor oils “all-season” oils?
Why are there multiple oils of the same viscosity?
What is the difference between AMSOIL XL Series Motor Oils and other AMSOIL motor oils?
Why aren’t AMSOIL racing oils recommended for street-driven vehicles?
What does the “W” represent in 5W-30 motor oil?
What is considered to be “normal” oil consumption?
Motor Oil: Heavy Duty & Off-Road Diesel
Is it safe to use Engine Flush in diesel engines?
Can diesel oils be used in gasoline engines?
Does AMSOIL offer diesel oils for equipment calling for the CJ-4 specification?
Are the AMSOIL CJ-4 diesel oils okay to use in older diesel engines?
What is the difference between AMSOIL 5W-40 and 15W-40 diesel oil?
Can CI-4 rated oil be used in 2007 or newer diesel engines?
Motor Oil: Power Sports and Small Engine
Is it safe to use 10W-30 in a small engine that calls for SAE 30 petroleum motor oil?
Can AMSOIL Formula 4-Stroke® 0W-40 Synthetic Motor Oil be used in new four-stroke snowmobiles?
Can AMSOIL Signature Series 0W-30 Synthetic Motor Oil be used in lawnmower applications?
Is it okay to break in new two-cycle equipment using AMSOIL synthetic motor oils?
What does “wet clutch” mean when discussing power sports equipment?
Does AMSOIL have a two-cycle engine oil recommended for power valves?
Will 100:1 mix ratios while using AMSOIL Saber Professional or AMSOIL Saber Outboard 2-cycle Oils void warranties?
Can AMSOIL Formula 4-Stroke® 0W-40 Synthetic Motor Oil be used in a four-stroke ATV or snowmobile where the recommended viscosity is 5W-50?
Motor Oil: Motorcycles
What AMSOIL motor oils are recommended for Harley-Davidson motorcycles?
What is the difference between Formula 4-Stroke® 10W-40 Synthetic Scooter Oil and SAE 10W-40 Synthetic Motorcycle Oil?
What is the recommended transmission lubricant for a Harley Davidson Big Twin?
What is the recommended transmission lubricant for a Harley-Davidson Sportster?
Are AMSOIL motorcycle oils wet clutch compatible?
Is AMSOIL Series 2000 Synthetic Chaincase Lubricant acceptable to use in the primary of a Harley Davidson Big Twin?
How can AMSOIL recommend 20W-50 Synthetic Motorcycle Oil for use in the primary and transmission in certain motorcycles?
What is the oil change interval for AMSOIL motorcycle oils?
Are AMSOIL motorcycle oils different from AMSOIL automotive oils?
Why does AMSOIL offer more than one viscosity motorcycle oil?
What are the change intervals for AMSOIL Synthetic Universal Automatic Transmission Fluid and AMSOIL Synthetic Fuel Efficient Automatic Transmission Fluid?
Is it required that all of the transmission fluid be removed before adding AMSOIL transmission fluid?
Can AMSOIL Engine and Transmission Flush be used in all transmissions?
Does AMSOIL offer transmission fluid for manual transmissions? If so, what is the change interval?
Is AMSOIL Engine and Transmission Flush compatible with seals?
Filters: Air and Oil
What is the difference between a “micron rating” and “beta ratio test” when referring to filters?
Are AMSOIL air filters washable? How are they cleaned?
Is it okay to use non-AMSOIL brand filters with AMSOIL lubricants?
What is the proper change interval for Ea® By-Pass Filters?
Can a larger size filter be used in place of what a vehicle calls for?
How long can oil drains be extended when using a by-pass filtration system?
What is the service life of AMSOIL Ea® Air and Oil Filters?
Fuel Additives: Gasoline
Can multiple AMSOIL gasoline fuel additives be mixed together with gasoline?
What exactly does AMSOIL P.i.® gasoline fuel additive do?
Does AMSOIL offer any fuel additives that combat ethanol-related problems?
How often should AMSOIL Gasoline Stabilizer be used in powersports and small engine equipment?
Fuel Additives: Diesel
Does AMSOIL Diesel Concentrate comply with Ultra Low Diesel (ULSD) fuel requirements?
Does AMSOIL Cold Flow Improver work if diesel fuel is beginning to gel?
Is it safe to use AMSOIL Engine and Transmission Flush in diesel trucks and cars?
What benefits are seen when using AMSOIL Cetane Boost?
Vehicle Warranty and AMSOIL
How does using AMSOIL synthetic motor oil affect new vehicle warranties?
Will extending oil change intervals void new vehicle warranties?
Does AMSOIL have a warranty for products?
Where should questions, regarding warranty, be directed?
Is there a glossary of common lubricant terms used in technical bulletins?
Where can AMSOIL product recommendations, for equipment, be found?
What is oil analysis?
Why should oil analysis be done?
Does AMSOIL provide oil analysis services?
Is AMSOIL Propylene Glycol Antifreeze and Engine Coolant compatible with aluminum intakes, cylinder heads and engine blocks?
Does AMSOIL recommend a particular type of water when mixing AMSOIL Antifreeze and Engine Coolant?
Is AMSOIL Antifreeze and Engine Coolant silicate and borate free?
Will GL-2 through GL-5 gear lubes hurt synchronizers?
Does AMSOIL Slip Lock need to be used with AMSOIL gear lubricants?
Can different AMSOIL gear lubricant viscosities be mixed?
If a vehicle manufacturer recommends a 75W-90 gear lube, may a 75W-140 be used?
Are AMSOIL gear lubes safe for yellow metals?
Is AMSOIL gear lube compatible with RTV sealant?
Can AMSOIL Severe Gear® be used in Harley-Davidson transmissions?
Is AMSOIL gear lube compatible with conventional gear lubricants?
Is AMSOIL Synthetic Automatic Transmission Fluid safe to use in Mercon V and Mercon applications?
Can an “off the shelf”, singularly specified Ford Mercon product be used in a Mercon V application?