Typical Long term Fuel trim?

[BimmerFlyer]

I was messing around with my OBD2 reader andwas looking at some live readings.. I did see some readings for my fuel trims.. STFT on both the left and right bank was close to zero....the long term fuel trims were around +8%..left+7.9%,right+8.1%...
Are these pretty normal values for a 160k miles m62? Is the positive adjustment an idication of anything obvious or just an age thing?
No obvious engine issues and no codes....and new pre-cat oxygen sensors..
Pete

[rslifkin]

I'd expect to see a few percent positive on any engine that would have originally been tuned on straight gas and is now running e10. Within 10 precent wouldn't worry me.

[BimmerFlyer]

I'd expect to see a few percent positive on any engine that would have originally been tuned on straight gas and is now running e10. Within 10 precent wouldn't worry me.

Ethanol, would have never thought of that.... be interesting to run a tank or 2 of non ethanol 89 thu it and see if the numbers trim back down, just as an experiment...
Pete