I need more information. Why is it better than the LM products, and does your shop sell LM's "Touring HighTech Diesel Special Oil"? If so, is it a superior quality product in your opinion? The two products you mention have "special" applications, as opposed to DFC's "general" application. Diesel Hi-Test may compare somewhat, but the Diesel Purge is a specific application for "sick" diesel engines.
I thank you for your response, bow to your superior knowledge, and consider you an authority on these matters.
BTW, did you work out the problem with your sister's car?
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"We drive into the future using only our rearview mirror."
- Marshall McLuhan -
Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."