06-05-16, 04:17 PM
(06-05-16, 01:10 PM)PieEater link Wrote: Oh sheet you called it, I'm real stupid ...Well obviously. :rolleyes
If you are following Yamaha's recommendations then you don't need my advice, since my advice was about what to do if you can't follow Yamaha's advice. Let me try to make it a little easier for you to understand.
It is fine to use mineral oil if you are changing every year or 5000 miles. It is better to follow Yamaha's advice and use semi-synth every 6 months or 4000 miles.
It is fine to use semi-synth if you are changing every two years or 10000 miles. It is better to follow Yamaha's advice and use semi-synth every 6 months or 4000 miles.
You should use fully-synth if you are changing less then every two years or more then 10000 miles. It is better to follow Yamaha's advice and use semi-synth every 6 months or 4000 miles.
It is not better to follow Yamaha's advice of waiting 6 months or 4000 miles if you have exhaust gases contaminating your oil.
It is not better to follow Yamaha's advice of waiting 6 months or 4000 miles if you have coolant contaminating your oil.
It is not better to follow Yamaha's advice of waiting 6 months or 4000 miles if your oil level drops.
It is not better to follow Yamaha's advice of waiting 6 months or 4000 miles if you have evidence of oil breakdown.
It is not better to follow Yamaha's advice of waiting 6 months or 4000 miles if you use your bike in race conditions.
Would you really like to compare the condition of the oil in your engine with that in mine? It costs about £30 from the likes of http://www.millersoils.co.uk/automotive/millercare.asp but I am happy to use someone else if you prefer. We could publish the results here for all to see. If you want to make a bet of it, the person with the poorer oil condition can pay for the others test. Interested?