Quote:

...which engine oil would you choose to minimise engine noise?...



Well. the crux of your question is a loaded one at that. You could pour motor honey in there and it would be really quiet- if it were really hot. If it were cold it wouldn't flow; and in a few short miles it would be really quiet! See where I'm going? The MFG recommends a viscosity based on the operating temp of the engine, pressure of the oil circuit, capacity, designed work load and number of other things. This is why we have multi viscosity oils- so one oil will work in a wide range of temps and operating conditions. You can stray a little from the MFG recommendations if you live in a severe climate.

There are really three choices in oils that will affect the "clatter" from these engines- and that is the base of the oil paraffin, petroleum, and synthetic (isoparaffin). Paraffin based oils leave a buildup, petrol oils break down and become acidic, and both are prone to thermal and viscosity breakdown. Isoparaffin oils have a much higher resistance to these failures. In fact, so much higher that contamination from normal carbon and dirt necessitates the need for oil changes. There are, of course, quality grades in synthetic oils, just as there in any lubricant.

mobile is one of the best commercially available off the shelf oils. Lucas, Redline, and Amsoil are the better high end oils.

2002 Bandit 1200/ GSXR cams/ 1277 BB Kit/ Holeshot header and can/ 38mm flatslides/ a good head/lotsa hp/lotsa tq- lots of rear tires...