Page 3 of 10 FirstFirst 12345678910 LastLast
Results 21 to 30 of 91
  1. #21
    Join Date
    Sep 2007
    Posts
    1,986

    Default

    I add petrol-and does act as a biocide-use it in car as well in small amounts when very cold as keeps diesel fluid.
    If you run on keroscene/central heating oil/paraffin then you will need to add an oil additive to provide the lubrication that diesel naturally has.
    Please dont say no-my Merc OM636 workshop manual gives you all the options /alternative fuels.

  2. #22
    sarabande's Avatar
    sarabande is offline Registered User
    Location : up on the moors.
    Join Date
    May 2005
    Posts
    26,191

    Default

    I add a very small amount of 2stroke (agricultural stuff, in 5l cans, chainsaws for the use of) to the tractors/mule, car, from time to time.


    Certainly helps starting, and reduce smokiness at startup.



    But I also use red diesel in the tractor....
    Last edited by sarabande; 17-02-12 at 23:10.
    I think, therefore I am. I am, therefore I sail.

  3. #23
    sarabande's Avatar
    sarabande is offline Registered User
    Location : up on the moors.
    Join Date
    May 2005
    Posts
    26,191

    Default

    I looked up the MSDS sheet for Redex.



    Naphtha (petroleum), hydrotreated heavy, 60-100%
    2-ETHYL HEXYL NITRATE 1-5%
    Petroleum naphtha heavy aromatic < 1%
    NAPHTHALENE < 1%


    So it looks as if it is basic raw petrol before it gets isomerised and treated to become real petrol, with some slippier oilier stuff added, and a cetane improver for better burning of the fuel-air mixture.
    I think, therefore I am. I am, therefore I sail.

  4. #24
    Join Date
    Nov 2004
    Posts
    7,524

    Default

    So in summary:

    The best additive would be some petrol mixed with 2 stroke oil?? Damit, we just changed to a four stroke outboard otherwise we'd always have a few litres of ready mixed stuff to hand
    Colvic Watson slideshow video http://www.youtube.com/watch?v=6RayUzX7LZQ

  5. #25
    oldsaltoz is online now Registered User
    Location : Australia, East coast.
    Join Date
    Jul 2001
    Posts
    5,895

    Exclamation

    I'm suprissed no one has mentioned adding Acetone to diesel.

    Good luck and fair winds.
    Growing old is unavoidable. However, growing up is still optional.

  6. #26
    Sneaky Pete's Avatar
    Sneaky Pete is offline Registered User
    Location : Firth of Clyde.
    Join Date
    Nov 2009
    Posts
    421

    Default Add whatever you like it's your engine.

    Has anyone added lapping paste to their diesel, itís about the only thing that hasnít been added yet. Why add anything to diesel as said on this thread petroleum companies spend a fortune on research and development of fuels for optimum efficiency. Why add anything to an engine that is working perfectly well if itís not broken donít touch it.

  7. #27
    Lakesailor's Avatar
    Lakesailor is offline Registered User
    Location : A North Country Lake
    Join Date
    Feb 2005
    Posts
    28,180

    Default

    Some people have to mess......

  8. #28

    Default

    It is called considering your options or tying to extend your knowledge from those more knowledgeable than yourself. I seem to be at the bottom of the knowledge tree so any acorns falling may help.

    If the petrol companies had thought of everything we would not have to add biocide and fuel pumps would not fail.

  9. #29
    Join Date
    Aug 2002
    Posts
    4,902

    Default

    Quote Originally Posted by Sneaky Pete View Post
    Has anyone added lapping paste to their diesel, itís about the only thing that hasnít been added yet. Why add anything to diesel as said on this thread petroleum companies spend a fortune on research and development of fuels for optimum efficiency. Why add anything to an engine that is working perfectly well if itís not broken donít touch it.
    Because the sulphur content in diesel has been reduced in most supplied marine diesel.

  10. #30
    SamSalter is online now Registered User
    Location : Alberta, Canada
    Join Date
    Dec 2010
    Posts
    69

    Default

    Sulphur content may have been reduced, but your diesel fuel manufacturers may well have added a lubricity agent to compensate.
    In N. America we've had ultra low sulphur fuel since about 2001 - not sure of date exactly.
    I checked with our Canadian fuel people and they assured me there was an additive put in to counteract the loss of sulphur. I also talked to Yanmar and they said the new ULSD was OK.
    I've got a Yanmar 2GM20F and have had no problems with seals and smoke after about 10 years using the ULSD.

    If you do a search and/or talk to someone in the know I suspect your British engineers have figured it out too! Engineers know stuff - I are one! They have a lot of training and experience. Or you could post the question on a sailing forum and follow the advice of accountants, bankers and sewing machine salesmen!

    Just joking - but as someone said earlier, engine, fuel and oil manufacturers spend a lot of time and money trying to get it right.

    sam :-)

Page 3 of 10 FirstFirst 12345678910 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •