Hi all, Not a car..but if any site on the net can help me find an answer, it will be this one! :) My new bike is specified to take this oil...Motorex Crosspower 10W60. FWIW, they are the OEM oil manufacturer for KTM, so that's the reason it's specified for my bike. But at $22 per litre, it's a bit expensive. Of course, the dealer says that this oil MUST be used in the bike, which I find to be complete [censored]. The only thing that gives me pause is the bike is equipped with a slipper clutch. I'm hoping some of the oil gurus here can point me in the direction of a comparable oil that I can use that is at least as high a quality. Synthetic is a must, and I suppose that it should also meet/exceed the JASO MA / API SG specification. Oil description is here: http://www.motorexusa.com/prod_detail.asp?id=63 Here's a blurb on why they made this oil: "The newly developed KTM LC4 654 cc single-cylinder engine made its debut in 2007 as the brand new KTM 690 SM. The LC4 is a born-and-bred high-performance engine. Due to its specific power output, its high engine speed, the wet-sump APTC-anti-hopping clutch as well as the twin oil pumps it sets high standards for its lubricant. Developed in co-operation with the Austrian motorcycle maker, the Swiss lubricant manufacturer MOTOREX has fulfilled these standards by developing the new Cross Power 4T 10W/60, whose composition and molecular structure perfectly match the technical factors. The engineers have tailored the new, fully synthetic premium oil entirely to the protection of the coatings inside the engine."