|
Hello:
I use non-synthetic 15W40 diesel oil in my 760GLE year round-- no complaints thus far. Most folks here seem to prefer Volvo or Mann filters. My concern with Mobil 1 is that you already are reporting leaks-- I would expect them to intensify with synthetic. If you are planning on fixing the leaks anyway, then synthetic is undoubtedly the way to go! Also, clearly, if your car burns any oil then synthetics are a total waste of money. In my experience oil burning is not a problem with the B280F, which have a very robust bottom end capable of going 250K+ mi. I doubt that any particular modern oil would result in a significant change in mileage.
Where is the oil accumulating? Is it in the V? The usual suspects for the B280 are the timing gear cover (25 bolts, 2 piece gasket), the valve covers and front and rear mains. Often they will leak from the cam access covers at the back too.
The mileage on these beasts is not outstanding-- I think the window sticker in mine said 24 hwy and 17 city. I can tell you I am getting way less than that right now (-20C nightly!).
Enjoy your GLE!
Herb Goltz, London, Ontario, Canada '89 760GLE w/171K mi
|
