Who has the highest mileage ?

[Andrew116]

Andrew 116,..fillinng "both tanks"...?  LPG ?

That's right AMG69 
I bought it with the LPG system installed (55 litres capacity) and a consumption of 17-18 litres/100 km in the city (Bucharest - capital city of Romania) and the selector in S position to compensate for the loss of power (20-25%).
On the freeway, if I'm between 100-120 km/h it's about 14-15 L / 100 km (about 7-8 litres of unleaded gas worth of money).
I'm fine with this... being my daily driver, LPG is very economical and week-ends are the fun of using 98 unleaded gasoline.

I'm curious if I'm the only one on the forum with LPG installed on the w116?

Have fun gentlemen!
Andrew in Romania

[116.025]

wau, 116.025 and s-class have some very impressive milages in their M110 engines. I would think some valve work would be necessary by that time and perhaps cam chain renewals.

Having met all of the car's owners since it came to the US in '82, I don't believe my M110 has ever had any major work done, valves or otherwise.  (Which is also probably why it so desparately needs valve stem seals... ) I even acquired all of the import paperwork and EPA and DOT papers regarding the car.  It also came with the 250,000 km award that the first US owner obtained.  It may very well not have its original chain, since I checked for stretch when I did the last valve adjustment and it was 3 degrees or less. 

[Martin 280s]

This morning, on the way to work, my odometer started showing 119,000km (almost 75,000 miles)!

[s class]

Tomi,

my M110 was overhauled at 255000 (indicated) km.  New pistons, rings, bearings, rebore (had to go to maximum overbore), polished crank, skimmed head and deck, ground valves deeper into head, new chain, new distributor drive gear, new oil pump drive.  (still original cam and crank sprockets).  All new chain guides and tensioner rail.  

Since then I have done now nearly 200 000km, and  I have changed the oil (castrol Futron semi-synthetic) every 7 000 to 8 000km.  At every second oil change, (ie every 15 000km), new air filter, new plugs.  At every 4th oil change, ie every 30 000km, new fuel filter, set valve clearances, replace transmission oil and filter.

Once a year I send the radiator in to be flushed and I refil with antifreeze and demin water.
Every second year or so I replace brake fluid and differential fluid.  

I have done this because the car needs to be ready 24-7-365 for business trips and it can't let me down.  But it does prove what proper maintenance does.  Even at nearly 200 000km after the rebuild, I basically never have to top up the oil between oil changes (provided I keep below 150km/h).  As an example, on my recent family trip to Durban (1200km round trip) I kept the speed fairly sensibe most of the way and the oil level didn't move.  

Ryan (wishing the W140 could behave the same)