Just installed my gauges and have a question about idle down. Before, I basically used the recomendatons in the owner's manual for turbo cooling. Now I see the magic 300 come up within about ten seconds of coming to a stop (light load) and putting transmission in park (won't drop below 350 in gear). After 30 seconds or so, the gauge reads about 250. After shutdown the gauge will creap back up to around 325-350 before easing it's way back down the scale. My probe is mounted pre turbo. Is the creep back up to 350 a concern or should I just let it drop to 300, shut down and walk away?
Kent
Kent