Here's how it went down. A friend of my boss is an engineer for Yamaha. He was in the shop one day and I asked him about oil in my bike. He laughed and told me my boss had asked him the same thing about his 2008 Apex, and he sent this email in reply. He showed me the email and basically explained it telling me the same info that can be read. I had trouble copying the link, so I just pasted it in to the body below. It's interesting reading.
I was reading the comments over on TY this morning and noticed a thread on what oil is appropriate for use in a Yammie 4-stroke. I have spent a lot of time lately researching this subject and preparing educational material for our web-site and technical Yamalube support. Here’s an excerpt where I have tried to offer some rationale to choosing the right type of oil for any motorsports engine regardless of its base blend (mineral or synthetic). I am sure you all have an opinion on this one but I have discovered some compelling information that has led me to write this:
“Trying to find a definitive answer to the old question – ‘Who makes the best motor oil?’ – is much like listening to a political candidate’s debate, so many opinions you just don’t know what to believe.
In the good old days things were simple. Fuel contained lead with very few additional chemicals and could be depended upon to offer stable performance with long shelf life. Engine oils were also basic and all you needed to decide was what thickness or ‘viscosity’ you needed based on the season and what brand sponsored your favorite TV show.
The rising costs of gasoline in the eighties triggered a response from the auto makers in engineering cars to be more fuel efficient. ‘Land yachts’ made way for lighter weight, more aerodynamic designs powered by highly-efficient, computerized engines which demanded newer, more specialized fuels and oils. On the heels of this new technology came additional requirements, stemming from modern environmental awareness. Government regulators around the world received mandates to legislate lower tail-pipe emissions putting even greater responsibility on the shoulders of the engine makers along with the petroleum industry.
Today’s engine oils are far more specialized than they were in the past. Petroleum engineers have developed new blends and additives to increase fuel efficiency. Special friction modifiers sometimes called ‘friction reducers’ are combined with low viscosity base oil to gain greater fuel mileage in cars. It’s all about the average fuel consumption claims, highway/city in the brochures and frequency of visits to the pumps. In addition to this, car oil formulations have reduced phosphorous (a traditional wear inhibitor) to help protect the new emissions systems that use catalytic converters. Motorsports engines are designed quite differently than car motors, to meet the specific performance demands within each product group. They do not like ‘friction reduced’ oils and require additional additives to protect against wear and extreme pressures not found in most car oils.
To develop certified automobile oil, engineers need only consider the basic moving engine parts: crank-shaft, pistons, cams etc. Transmissions, clutches, torque converters and starters are all external components working outside of the engine cases. They are not a consideration when formulating a friction reducing motor oil. Not so with motorsports engines. Depending on the product, the engine oil will also have to lubricate the transmission, clutch and can impact the starter clutch, gear reduction system, Sprague clutch and other components not found in car engines.
Add to this, many motorsports engines are very high performance some running at well over 10,000 RPM for long periods of time. Others are air-cooled, producing massive torque and high temperature at very low rpm while others run in extreme, hostile environments like water, dust and salt which can accelerate corrosion and wear far beyond that of the family mini-van.
Unlike the automobile industry, motorsports (which includes motorcycles, all-terrain vehicles, snowmobiles and recreational marine products) collectively represent only a small fragment of the internal combustion engine market. It costs the big oil companies a lot of money to develop, test and certify motor oils for different applications and the truth is; the bulk of the oil available today is not created, tested or certified for use in motorsports products. The small potential sales volume is prohibitive to development. With that said, retailers still love to sell you car oil for your Yamaha even if it could prove harmful to certain components or not deliver the best performance over the long haul. Oil is oil, its just business, right? Wrong.
These days it is more important than ever to understand the benefits of using lubricants designed specifically for your engine. Yamaha has been in the oil business for a long time being one of the first manufacturers to brand and market specialty lubricants dedicated to the specific needs of motorsports products. Yamalube will protect the internal components from premature wear, pitting and corrosion while delivering maximum engine performance through the complete power train. This comes as a result of Yamaha engineers working directly with leading petroleum industry experts in the formulation and testing of each Yamalube product using high-performance Yamaha engines in real world simulations.
Regardless of what your experience has been in the past, the new age of automotive specialization is upon us and the car oil you have grown to trust over the years could very well lead to deteriorated performance or expensive repairs in the future. You own one of the world’s finest engines, it deserves the best. Yamalube.
Tip: read the label; if it uses the words ‘friction reduced’ or ‘friction modified’ don’t put it in your Yamaha.”
I’d like to learn more about what your thoughts are on engine oils and lubes and I plan on putting together an on line survey to gather some data. I also have some information directly pertaining to our snowmobile engine requirements which I’ll share in another post.
I would like to ask your help with this one. I have a brief survey which will help us better understand a market issue. It won’t take you more than a couple of minutes. Please click here if you are a real snowmobiler.