Is there a recommended maintenance event for this? My 2011 gen1 is almost 8 years old/65k miles. I never had an oil leak ever, and I am always at 4.0miles/kwh for the last 8 years.
Do I need to change this oil?
estomax wrote:some preliminary results are in over the last 3 weeks of driving and i seem to be settling in at 3.9 miles/kwh vs the 3.7 that i had averaged for the month and a half that i reset before that. Ambient temperatures here in the Seattle area have been about level.
this is obviously not very scientific but there are some single digit efficiency gains possibly to be had by swapping to the redline D6 fluid over stock fluid.