ULSD in older engines-emissions

[Scott Forman]

I know that ULSD results in greatly reduced emissions from the engines
designed to run on it, but is it any cleaner in our old engines? Just
curious.

Scott Forman
86 PT38
Memphis

[Don Bradner]

I'm sure it is possible to debate what-all makes up "cleaner," but the basic
equation is simple:

Less sulphur in equals less sulphur out. So for that particular byproduct, all
engines are outputting far less of it than they were, when run on ULSD.

Don Bradner
90 PT40 "Blue Thunder"
Posting today by satellite from Quartzsite

On 1/29/2008 at 11:34 PM Scott Forman wrote:

>I know that ULSD results in greatly reduced emissions from the engines
>designed to run on it, but is it any cleaner in our old engines? Just
>curious.
>
>Scott Forman
>86 PT38
>Memphis

[Pete Masterson]

In theory, ULSD, would have fewer sulphur-based emissions in any
engine using it. There are some issues with fuel system hoses and
seals on older vehicles (pre-90, probably), so you may need to watch
for fuel leaks and plan to upgrade/replace the flexible fuel lines.

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road at Idaho Springs, CO



On Jan 29, 2008, at 4:34 PM, Scott Forman wrote:

> I know that ULSD results in greatly reduced emissions from the engines
> designed to run on it, but is it any cleaner in our old engines? Just
> curious.
>
> Scott Forman
> 86 PT38
> Memphis
>

[hippieforever3]

Less sulphur means less sulphuric acid in the exhaust circuit. Pipes
and muffler may last a little longer.

Wave,
GPSGary