I have had my John Deere 4045 for just over a year now and I've only put 30 hours on it. The oil
looks really clean.
I know I should change the oil
but the oil supplied for running in was 30W and I can't get straight 30W easily in Oz. All my local had was 10W-30W.
So, do I really need to change the oil/filters/fuel filters etc? And could I just run the engine
up to 100 hours (another year?) and change the oil then?