Posted by ss55 on February 15, 2015 at 21:35:19 from (173.28.18.88):
In Reply to: John Deere 4020 Turbod posted by BarryRanch on February 15, 2015 at 11:51:51:
I've seen rough estimates of around 3 percent power loss per 1000 foot of elevation for naturally aspirated engines. At 5000 foot you could be down 15 percent compared to at sea level due to the lower barometric pressure at higher altitudes. You should verify this at one of your local shops.
If you don't need the extra power, you could dial down the maximum fuel setting to avoid wasting fuel (black exhaust smoke). Some folks like to see black smoke from a diesel and prefer to over-fuel them.
Many modern fuel injected engines have barometric pressure sensors and automatically adjust fuel delivery for changes in barometric pressure.
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