Yes its amazing Mercedes commercial vehicles can clock up 200,000 miles plus using ordinary fuel and probably basic MB spec oil.
I wonder how far they could go using super fuel with all the cleaning properties and Mobil 1 ?
The file is too large to post so here's a copy and paste of the text (sorry, no photos). No, not Mobil 1.
''When it comes to extending drain intervals and protecting the engine from wear and deposits, field tests were conducted to determine real world durability of the SAE 15W-40 formulation used for Monolec Ultra® Engine Oil (8800). The test consisted of four trucks* hauling full loads cross-country and back. At 50,000 miles, the drain intervals were double the OEM recommendation. After 600,000 miles, three of the engines were torn down and inspected. The results are shown in the pictures below. One engine continued to one million miles and was also in excellent condition at the end of the test. LE engine oil passes million-mile field test challenge
*The four test vehicles were 2008 Peterbilt model 387, class 8, long-haul trucks with 2007 Cummins ISX 15-liter, 450-hp EGR engines – all specifying SAE 15W-40 CJ-4/SM engine oil.
Other In addition to the results shown above, the camshaft rollers, injector cam bearings, engine cylinders, wrist pin bushings, and valve and brake cam bearings all showed excellent cleanliness and wear protection. The valve cover, oil pan, and valve train showed excellent sludge control.''
That's what I use in my engines - and why.
! £1.68 at Slough Tesco, yesterday too.
