The problem with both the injector pumps and the injectors was the
lack of lubricity in the diesel oil. Removal of the sulphur removed
the lubricity.
This is a very controversial notion. I have read many statements in
various forums by people who say they are in the fuel industry who
categorically state that low sulphur fuel has as much "lubricity" as
the older fuel with sulfur in it. They say that no aftermarket
additives are necessary, that the refiners ensure the proper amount
of lubricity (using their own additives at the refineries) when they
make the fuel.
I have no ideal if this is true, despite my reading more statements
that say it is than say it isn't. On the advice of our diesel shop
we have used a mil spec lubricity additive in our fuel since buying
the boat twelve years ago. I cannot say if the additive is helping,
hurting, or not doing anything. I can say that in the twelve years
we have owned the boat, the oil consumption of each engine has not
changed (a quart or less every 100-150 hours), nor do they smoke
except at startup (they say if a Ford Lehman 120 doesn't smoke at
startup there's something wrong with it).
C. Marin Faure
GB36-403 "La Perouse"
Bellingham, Washington
>The problem with both the injector pumps and the injectors was the
lack of lubricity in the diesel oil. Removal of the sulphur removed
the lubricity.
This is a very controversial notion. I have read many statements in
various forums by people who say they are in the fuel industry who
categorically state that low sulphur fuel has as much "lubricity" as
the older fuel with sulfur in it. They say that no aftermarket
additives are necessary, that the refiners ensure the proper amount
of lubricity (using their own additives at the refineries) when they
make the fuel.
I have no ideal if this is true, despite my reading more statements
that say it is than say it isn't. On the advice of our diesel shop
we have used a mil spec lubricity additive in our fuel since buying
the boat twelve years ago. I cannot say if the additive is helping,
hurting, or not doing anything. I can say that in the twelve years
we have owned the boat, the oil consumption of each engine has not
changed (a quart or less every 100-150 hours), nor do they smoke
except at startup (they say if a Ford Lehman 120 doesn't smoke at
startup there's something wrong with it).
____________________
C. Marin Faure
GB36-403 "La Perouse"
Bellingham, Washington
