My 850 has given me good mileage and comfort for many years and for reason unknown to myself I have decided to do more than the usual oil and filter change, coolant change, spark plugs etc.

I have done the following for the car, and would like some opinions on whether they are adequate and what I am missing. I want the car to go for another 60K.

Transmission power flush and fluid exchange
BG44k in fuel tank
Oil and filter change
Coolant flush and fill
Spark plugs
Timing belt (last time was at 90K)
Drive belt (last time was at 80K)
Throttle body/flame trap cleaning
EGR cleaning
Inline fuel filter
Steering stops greasing

The car runs great, and negligible emission and I will have the throttle body cleaned again in 15K and, based on the valuable experience of people here, I am going to use BG44K twice a year on long trips and follow with oil and filter changes, and replace the inline fuel filter every 20K.

Is this kind of maintenance with high mileage like mine adequate? Of course, the adequacy is hard to define. :-)

Thanks,
Kinderknight
Brakes (at 140K)