Compression Ignition Addict
Join Date: Oct 2014
Thanked 23 Times in 23 Posts
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recently for me at 9000 ft block heater plugged in...
IAT = 28°F
and GP burn time was still 85 seconds, i still do a full burn, then turn ignition off...
and then just start her up somewhere in the second GP burn time.
seems the GP burn time has lots of inputs f(EOT,IAT, pressure) but as mentioned, unless they are all up to 'room temperature'
there will be at least one minute of burn time.
Otherwise, the actually oil temperature seems to be the overriding factor for ease of start, not fuel temperature or intake air temperature?
makes sense since that's the inertia to be overcome when cold. 5w rotella for me.
i will say that a few years back after i changed injectors, I noticed the GPIL nonsense light used to stay on longer, but of course never show true burn time.
I monitor battery voltage to see when/how long the GP are burning. 11.9 off, 11.44 on.
It takes about a minute for the alternator voltage to get back up to the charging value of 14.5v when running.
New batteries, and a rebuilt alternator 2 years back, it helped to have stronger voltages.
loose grounds can generate heat.......even had my alternator glow red hot when the connection was loose a few years back.
melted the connector, hence I had it rebuilt completely.
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