Marvel Mystery Oil
#3
Originally Posted by Pig
Don't need it. If anything, I'd only use it in an extremely dirty engine to loosen some deposits, thats it. Even then, it isn't very effective from past experience.
I have used it and Power Service every tank since new on my 05, and the last 100k on my 92. Anything you can do raise the cetane and lubricating qualities is going to extend your fuel system life.
That being said, the CP3 on my 05 went south after 30k with leaks. On the other hand I don't have any problems with injectors or combustion knock from carboning the tips.
Its a little insurance and peace of mind.
#4
Originally Posted by no_6_oh_no
Ummm....no. MMO is a fuel lube not a cleaner.
Read the section "when added to engine oil"
#5
Most use it in the fuel system as lubricant is important in the low sulpur fuels. I don't use any additives in my oil as they did a test a while back showing most oil manufactures stated not to use the treatment in the oil due to what it does (some actually broke down the molecules that lubricate) yes it thinned it out and got better millage, but at what, the life of the motor, no thank you. I use PS, and am going to look into mixing the MMO 1/4 to the PS.
#7
Originally Posted by roc155
I've Been Using The Ps. I Was Just Wondering About More Lubricity. I Don't Know The Quality Of The Diesel Down Here In The Houston And Surrounding Area.
We should be using TxLED diesel fuel now in the area. It's ULSD with a cetane rating of 46. I hope it's good stuff.
MikeyB
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#9
Registered User
Joined: Sep 2004
Posts: 1,039
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From: somewhere in northwestern ohio....Mansfield, Oh
Pilots use it because the 100 low lead fuel causes valve sticking and plug fouling on the older engines that were only designed for 80 - 86 leaded fuel . I found in my plane it helped very little and it is not FAA approved and I stopped using it . I got a auto fuel STC for my older Cessna and all my problems disappeared but I still know some older pilots that still use MMO . I have seen many more use a pint of automatic transmission oil per 20 gallons with better results . I do add a pint of Avblend in at my oil changes and it has helped my aircraft a lot . The older aircraft didn't even have oil filters on them until the late 60's and many still do not . In my diesel I put diesel fuel after trying many different additives over the years and have never seen one that would pay for it's self .
#11
I've been using a mixture of Diesel treatment & MMO for some time but I have no specific data that says how I'm benefitting. I keep several throw-a-way 16 oz water bottles on hand that is filled with 8 oz diesel treatment & 8 oz of MMO. I add a bottle every other fuel fill (which translates to a bottle of treatment mixture about every 35 gallons or so). Why am I doing this? Cause some of you guys on DTR recommended it.
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Hummin Cummins
General Diesel Discussion
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07-05-2003 09:55 AM