I just love reading these "debates".
BUT, its for lubrication only - and some kickbacks it offer.
FACT, we experience many diesels coming in beyond 150k before glow plugs get replaced. This is a nightmare for any workshop and customer since 90% of the time the glow plug tip get broken off, and subsequently the top need to be removed....
We did a test this week with 8 diesel vehicles of various brands all over 180k with original glow plugs. 1l of 2so was added on a full tank. Between Thu and Fri all 8 vehicles came in for servicing with 100% removal rate of the glow plugs...
Use it, don't use it.....
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