Triumphrat

drakewn

Here is what is written in the service manual for an '02 daytona 955i and speed triple:

"Semi or fully synthetic 10W/40 or 15W50 motorcycle engine oil which meets specification API SH (or higher) and JASO MA, such as Mobil1 Racing 4T.

Your Triumph Motorcycle is a quality engineered product which has been carefully built and tested to exacting standards. Triumph Motorcycles are keen to ensure that you enjoy optimum performance from your machine and with this objective in mind have tested many of the engine lubricants currently available to the limits of their performance.

CAUTION: Triumph high performance fuel injected engines are designed to use semi or fully synthetic motorcycle engine oil which meets specification API SH (or higher) AND JASO MA.

Do not add any chemical additives to the engine oil. The engine oil also lubricates the clutch and any additives could cause the clutch to slip.

Do not use mineral, vegetable, non-detergent oil, castor based oils or any oil not conforming to the required specification. The use of these oils may cause instant, severe engine damage.

Ensure no foreign matter enters the crankcase during an oil change or top-up."


The above was taken word for word from the manual. It may seem harsh, but now you can make your own decision. Since I know I'm not smarter than the Triumph engineers, I'll just go with the full synthetic. AND, I'll buy the Triumph oil filter, and none other.

About fuel, if you don't plan on going over about 6-7000 rpm, the 87 octane gas will probably be just fine. Otherwise, have a happy detonation. If you don't know what detonation is, it's when the fuel ignites too soon, and your pistons have a meltdown.