OK, Ive replaced Glow plugs many times before but never have I been certain that Ive had the correct setting on my meter.
I need it really dummed down. A properly functions GP will read .8 to 1.2 right? but on what setting on the meter?
What setting should the meter be on? The options are 2000k, 200k, 20k, 2000, 200.

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84 300SD 274K
38K miles on flatplate heat exchanger and various diesel/veg blends. prior to that 4K miles on unheated veggie blends with kero and DinoD.