Opti-4 43444 1 Gallon SAE 30W 4-Cycle Engine Lubricant

I have a Troy-bilt self-propelled walk-behind mower from when TB made a great mower with cast aluminum deck and front wheel drive with Briggs and Stratton engine. I believe it is a "98 model. All I have ever done is change spark plug and air filter every 2-3 years and use this oil at a change every year or maybe 2 and it is 22 years old now. When I bought mower the dealer talked me into this oil mostly on the promise to double mfg. engine warranty. Well I am well passed whatever length that would have been but I firmly believe the oil has been the reason for the longevity of this engine.

Have been using this product for years, but in the 20 oz bottles. This is a more cost effective way to buy it.

Extends the warranty of my lawn mower through the manufacturer if I use this product.

Excellent 4 cycle oil. Have used before

I use this oil in my 15 thousand dollar Hustler mower. It doubled the warranty. We'll worth the money.

Quick delivery

There was no label on the jug, which was oily all over the outside. Just a sticker inside the packaging which wouldn't begin to stick to the plain jug that this oil came in, so who knows if it is really Opti 4 or not!

Used in a 40 year old garden tractor.