Angled tonneau cover questions

[gone9]

97 was pretty terrible after Bend OR all the way to Biggs OR at the Washington border lol. I was going about 40mph max at some parts and even then it was a little spooky. A few spots I was passing semis at about 30 mph. Risky but if I felt comfortable I would. A few times we just followed convoy style and road it out.i can take some measurements of my old exhaust back pressure balance if you want?

[slowmover]

I’m told winter fuel is a 4% decrease in energetic content.

Control of coolant temp is the problem. Use of a complete winter front is necessary to keep temps at normal. That’s just below thermostat opening temp while running solo. But add in ascents and/or higher travel speeds, thermostat might open.

WF on mine is underhood and completely covers radiator yoke and all heat exchangers wall to wall and floor to ceiling. Adjustable flaps at center open/close.

FWIW, I lose 20% on average between 59 and 70/mph run speeds. The absolute numbers look nice, but it’s that percentage change that matters.

What was the average mph?

[gone9]

I would say average is 67mph but some drastic rise/drops in elevation. My best average was 17.7mpg after the level kit and tires with summer blend diesel on the same route and I stop at the same gas station for habit and ease of access/clean bathroom and healthy snacks.

Would it be reasonable to assume the tonneau cover is at lest helping a little with economy considering my best with winter blend was 17.3? This also including some heavily snowed roads, 30mph sections etc? I plan on doing same trip in August time with hopefully only an air dam added.

No fuel additive was used this or last trip but I did notice a very slight improvement with diese kleen if used properly but the benefit didn’t make up for he cost so I only use it couple times a year when I travel through areas with questionable diesel etc.

[aerohead]

Originally Posted by justinooo9

I would say average is 67mph but some drastic rise/drops in elevation. My best average was 17.7mpg after the level kit and tires with summer blend diesel on the same route and I stop at the same gas station for habit and ease of access/clean bathroom and healthy snacks.

Would it be reasonable to assume the tonneau cover is at lest helping a little with economy considering my best with winter blend was 17.3? This also including some heavily snowed roads, 30mph sections etc? I plan on doing same trip in August time with hopefully only an air dam added.

No fuel additive was used this or last trip but I did notice a very slight improvement with diese kleen if used properly but the benefit didn’t make up for he cost so I only use it couple times a year when I travel through areas with questionable diesel etc.

My late neighbor,Bob,did what you've done with his 1960s Chevy pickup.He saw a measurable improvement,even though he drove really slow on the highway.(like 45-mph)
A side benefit,other than MPG will be something like a 60% reduction in lift over the rear axle.That's worth the price of admission right there!

[slowmover]

Your average speed (as before) will be about ten mph slower than your cruise control set speed, for instance. It’s why I emphasized it heavily in earlier posts. If you’ll slow down and re-read them, it’ll help. It’s painful to flounder mentally, I know.

[gone9]

I had to recalibrate my speedo too. Last year when I did my level kit on the front end I also went from 265/75R16 up to a 285/75R16 so have whats called an edge insight cs monitor from edge products and then I multiple my odom by 1.037 to hand calculate miles driven.


Also may be a slight delay in my aeromod future for a while. I recently began trying to find work back in Idaho where I am from. California has been getting too crazy for me and taxes go up every year, not to mention the 27cent new diesel tax increase as of Nov 2017...

I have a video conference interview today after my phone interview went well earlier on Wed. Once im either in Idaho and settled or if im stuck in CA for longer i'll know soon and get back to work on an air dam and my DIY angled tonneau cover.

[slowmover]

Good luck!

[aerohead]

Hope that went well.I left the West Coast in '75 and never looked back! And whenever I visit I'm reminded of why.

[freebeard]

Once im either in Idaho and settled or if im stuck in CA for longer i'll know soon ...

Keep in mind Oregon and Washington states haven't been Californicated. If that ever happens, I'm headed to Boise.

[Angel And The Wolf]

Everything I've read says 15% is optimal for preventing slip stream separation You want the air to stay as close as possible to the skin to prevent turbulence