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I am not touching your other thread, there have been too many disputes here over the years. You can search this forum and go over all the old threads with tuner wars all you want.
This one however, I have never heard of a tuner having weather specific tunes. The programming uses the trucks sensors, oil temp, idle air temp, etc. to make adjustments to the fuel mapping, so I don't know what one would change from summer to winter.
You guys bring up a good point.
I had not thought about tunes based on oil.
Tugly, your postings always crack me up. And good point.
I hadn't even thought about the points you guys made. I was thinking more on the lines of colder denser air, with more mass air flow. Or, dragging my trailer here in the mountains of Co. and less O2 etc. I know we can't plan for all the conditions out there we might experience but I was thinking of the two extremes with the weather we see here.
i run valvoline 15-40 all fleet oil year round. and 99.99% of the time my DP F-5 chip is in 80 econo tune winter, spring, summer, and fall.
i see no difference in the way the truck runs whether it is 100 degrees or 5 below.
the only thing i do different in winter is hit the remote start to warm the engine up for 5 minutes before leaving
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