Note from Dealer: I personally have been using and selling this 100:1 since 1997. I own a Lawnboy mower bought used, a Homelite chain saw and a cheap Sears weed eater, bought in 1997. I have never had one problem. All start up easily even after storage. Being a fill time dealer, I have many lawn professionals using the Saber Professional. They use less product, save money and their equipment lasts years longer than when they used the standard shelf brands.
When you use a higher quality oil you simply need less. AMSOIL Saber has a higher film strength of several thousand times which doesn't allow metal to metal contact thus effectively reducing temperatures.
They save time and prevent problems caused by having several different mix ratios. See our actual cost per gallon chart to see just how economical AMSOIL 100:1 Saber Professional is.
AMSOIL 100:1 works in all equipment. The higher film strength of about 4000 times virtually eliminates metal to metal contact. Lower temperatures, zero carbon buildup, high detergent levels, low odor and emissions makes this a no brainer.
A note on solvents - The main function of solvent in 2-cycle oils is for fluidity and miscibility. It is added to lower the cold temperature physical properties of an oil. It helps the oil mix better with the fuel and it thins the oil out so the injection system can pump the oil. It can provide some small amount of cleaning performance. It does not produce a lot of smoke.
Typical 2-cycle pre-mix and injector oils can contain as much as 30% solvent. Therefore by reducing the amount of solvent, you are increasing the quality of oil which actually performs the necessary functions of a lubricant. Keep in mind however, proper formulation of the oil is key to achieving the desired performance. This helps explain how AMSOIL ATP can perform at lean mix ratios such as 100:1. It contains extremely low levels of solvent and therefore adds up to 25% more actual lubricating oil to the system.
Also need a 4-Stroke oil for your hard working high heat small engines? We now have something specific to your needs. AMSOIL SAE30/10W30 Commercial Grade Synthetic.
From a long time customer in Maine - Letter sent December 2009
Dear Mr. Cain:
When I first purchased AMS Oil’s two-cycle fuel mix, I was reluctant to run my chain saw at the prescribed 100:1 ratio. However, after reading the technical literature that your company supplied me, I then decided to try the recommended ratio. As a result, almost immediately my chain saw ran smoother with no resulting damage to either the engine or carburetor.
What is more, after I added AMS Oil’s P.I Performance Improver Additive to both my chain saw and weed wacker, years of deposits that had formed in both engines, were burned off in minutes. Even the gas tanks regained their like-new appearance.
Thank you for providing me with great products that enables my equipment to last longer and run more efficiently in the harsh climate of northern Maine.
Because of your knowledge, expertise, and honesty, concerning synthetic oil applications, you now have a loyal customer for life.
Sincerely yours,

Lee Malvin