[gumby79]

If there wasn't room for the truck to stop? should the car have been in there? I have had trucks draft me 1-2sec with my 3-5 sec intervals . Then on a hill they'll pass me and draft the truck in front. Owner operator I'm guessing. Most trucks are going faster than I'm willing to burn fuel 70+mph. My $500 Insurance Deductible ROI is reason enough to not draft. Plus a much more relaxed mood begin able to see what's going on ahead to plan for hills and grades, traffic slowing a 1/4mi away.as well as driving in rear gun truck in Baghdad, IQ some times I run with a 300m /10sec. interval for comfort .
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Back on topic . Anyone else noticed a drop in cruse EGT on there Cummins after stepping up to synthetic oil? I'm seeing a 50-75°f reduction. And a significant reduction in turbo cool down idle time. Yes oilpan I cool my turbo. Its an antique 91 without water cooling. Before you rag me about my cooling practice. I've gotten 18 fill-ups at or above 25mpg in the last 3 summer months. Cool down time ws reduced from 1-5min to 5-30sec to reach 3-350EGT and the immediate shutdown is only resulting in a rise to 400EGT now as apposed to going to 5-600EGT I ve run expairaments.pulling a hevy grade @800 EGT 2mi past the summit last 1/2mi neutral costing stop aat 400 EGT kill it and the EGT was climb to 700°f and climbing that was as far as I was willing to cook/coak the oil in the bearings . This required turbo cooling is all but gone.

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Duse anyone have access to a BSFC for a late intercooled 1st gen I've only found a hp/tq map