Was wondering if it would be beneficial to change the oil filter in between oil changes in addition to changing it when I change the oil?

i dont think there would be any aside from cleaner oil... 3000 mile oil & filter changes seem to work best

probably most beneficial to the filter company.

I'd say MB and most other auto manufactures spent a lot of time thinking about service intervals for their products.

Engineers spend all day thinking about this kinda stuff. Are you gonna out think them?

Yes, you could change your filter & oil much more often for a slight benefit...but you reach a point of diminishing returns...

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1987 300TDT
1981 VW MKI Caddy 1.6 diesel, waiting on engine swap
1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel
assorted gas powered crap and motorcycles

RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5

I don't have the same faith as you do about the automotive engineers, but I do agree that more frequent oil filter changes (especially filter changes) are probably not going to increase engine life by much. That's because the oil that is circulated through the engine is not filtered to a particle size smaller than the tolerances inside the bearings. In other words, the grit left in the oil by the filter is large enough to cause bearing wear over time.

Replacing the oil will reduce the grit load far more effectively than changing the filter (well, unless you add grit with your new oil ).

So... how often on the oil? I don't think MB engineers of 20 years ago were given a parameter of making the engine only last so many miles, so the factory recommendations are probably sufficient for a long engine life. Long being defined as longer than it will take for some other part to wear and require an engine rebuild, during which any worn bearings can be replaced too.

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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png

Broadband: more lies faster.

I only change my oil filter every other oil change...... But I change my oil DAILY.

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1984 300D Water-Alcohol Injection System, Pyrometer & Boost Gauge running B100 (soon to be homebrewed!!!)

Are you in the Guiness book of world records?

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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

No benefit at all.