i awoke my s500 today after a 6 month slumber.changed oil and filter and warmed uo for 5 mins.while i was on the highway it seemed that my instantaneous mpg was higher than i remember while i had it on cruise.what does your s-class read in instantaneous mpg when your s-class is going 60mph or 100km/hr on a steady road?
another thing,when i initially took it out the tranny had a hard time going into 4th gear and at first it would make a chirp sound as it went into 4th.i know this isn't normal but what does it indicate-if anything.remember the car was idle for some time.i haven't done a tranny fluid change in some time but it was on the list of chores this year.is my tranny cooked?is this why my mpg is higher than i remember?

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'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)