My ML is at 7000mi and on it's fourth oil tranfusion, yeah I know, 3000mi club plus insanity. But I was raised (automotively) by a great old English Gentleman auto tech who preached clean oil to me back in the day when engines weren't broken in at the factory.
Hence, I change my new cars at 750, then 1500 and then 3000. I left that load of Syntec in for almost 4k mi and just changed to Mobil 1 15-50 thanks to a great thread on oil formulations.
Anyway, I tell you all this to say that from day one the FSS was calculating 10k miles for the next service. Changed at 7k miles, the FSS is reading 4K miles until my next service. So, all in all it is not really extending my A service by much. What gives?
Ed "Don't Benz's just feel better..."
2000 ML430 Skyview "The Mel"
2000 CLK430 Cab "The Cab"
85 300D Turbo "The Diesel"
"One should as a rule respect public opinion in so far as is necessary to
avoid starvation and to keep out of prison, but anything that goes beyond
this is voluntary submission to an unnecessary tyranny, and is likely to
interfere with happiness in all kinds of ways."