What engine oil do you recommend.

[TempOzzy]

What is the harm in switching to a full synthetic oil at low kms?

My 08 is nearit's 6000k service and I was considering going to full synthetic. I figure the engine should be completely run in by now so there would not be any bore glazing issues etc.

Has anyone had any warranty issues that have been related to using an oil that is not recommended by Suzuki (do Suzuki support the use of full synthetic if problems arise)?

Some people have said it's not worth changing the oil any sooner than the service intervals. From my understanding I'm inclined to disagree if it takes a couple of years or more to clock up the km's. The detergents and additives in mineral based oils break down quicker than that resulting in poorer oil performance, particularly in avoiding sludge deposits.