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Old 09-20-2012, 01:34 PM
strelnik strelnik is offline
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Join Date: Aug 2007
Location: SE Mich
Posts: 3,285
Quote:
Originally Posted by PackerEdgerton View Post
Hi guys,

I've been putting Marvel Mystery Oil (MMO) into my engine oil at each Oil Change Interval (3000 miles on the 240D).

I'm not doing any kind of oil analysis, but my 'shade-tree mechanic' sense tells me that my oil filter is MUCH heavier than it usually is, and certainly when I am cleaning up spilled oil (I'm using Chevron Delo 400LE 15/40 from Costco) the used oil (that is mixed with the MMO) cleans up really nicely. That is, it seems to wipe up from surfaces without leaving a whole lot of black oily mess.

I'm hoping that this means that the MMO is keeping the insides of the OM616 cleaner, and that it is slowly removing 30-year-old combustion residues, etc.


Have any of you had long-term experience with MMO in the motor oil, or have you done oil analysis with MMO in the oil?

I'm just curious as to long-term use and/or some kind of analysis that would tell me this is a good idea.

Sincerely,

Packman
There was an article written in 2007 praising MMO for iyts cleaning ability but it actually made ULSD more abrasive than the 520 micron scarring that typically happens!

It's a great cleaner in the fuel and to clean upper rings, but PLEASE be careful about adding it to the fuel.

The best cheap alternatives that were effective were the equivalent of 5% biodiesel mix per tank to the fuel and lubricity additives to the oil
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Strelnik
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1950 170SD
1951 Citroen 11BN
1953 Citroen 11BNF limo
1953 220a project
1959 180D
1960 190D
1960 Borgward Isabella TS 2dr
1983 240D daily driver
1983 380SL
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