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How to Improve Winter MPG's

winter mpgs

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108 replies to this topic

#101 OFFLINE   joshg678

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Posted 12 November 2017 - 12:02 AM

Been in the 40s and my mpg is 50 mpg. Using hear sparingly







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#102 OFFLINE   SnowStorm

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Posted 12 November 2017 - 01:10 AM

I sure took a hit on a trip today (I mean yesterday!).  Only got 45 mpg when I would normally expect at least 50.  On the trip out I watched coolant temp on ET screen.  It averaged about 80F or a bit higher - all over the place of course as you go in and out of EV.  OAT was 35 to 40F, heater set to 75F, #4 fan speed, Recirc and 65 mph.  I then turned heat off and coolant temp went up 10F, maybe more.  Even at highway speeds the engine was hardly ever above 95F.  I really do need to try grill covers.


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#103 OFFLINE   joshg678

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Posted 12 November 2017 - 08:05 AM

You could put some good packing tape on the middle and lower ones as a test to see, large difference for sure.
It’s 30 out right now and I have to go on a 30 mile drive today, I’ll monitor my WT on my scan gauge.

#104 OFFLINE   ptjones

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Posted 12 November 2017 - 11:54 AM

So with Grill Covers on today going to work OT 45*F. with car in garage, oil pan heaters plugged-in, WT 91*F and SOC 40%. The 7 mile trip is 45 mph with several signals and takes about 13 minutes, at work WT was 180*F,   51 mpg and 45% SOC. :) Didn't use heater or electric seats, garage temp was 66*F.

 

Paul 



#105 OFFLINE   joshg678

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Posted 12 November 2017 - 11:27 PM

Today I had a couple trips with it being about 42F
The WT got nice and high, had about 10 miles straight on highway and interstate doing about 65 mph. We got up to 230F. I had the heat at 72 recirculating.
There was a gentle incline. At the top went into EV for a mile and went down to 213 for the next bit till I got off. Stayed above 180F the rest of the way with 45-55 zones and lights etc.

Bottom grill cover, middle is taped, top is open.
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#106 OFFLINE   Bill-N

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Posted 13 November 2017 - 12:08 PM

You could put some good packing tape on the middle and lower ones as a test to see, large difference for sure.
It’s 30 out right now and I have to go on a 30 mile drive today, I’ll monitor my WT on my scan gauge.

 

Or foam insulation intended for water pipes.  See Home Depot, Lowes, or local hardware store.  Works great.   :)


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#107 OFFLINE   kyledamron

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Posted 16 November 2017 - 06:46 PM

I put the pipe insulation on today. My bottom grill is broken and needs replaced at some point, so it is multiple pieces. The middle grill, I used one piece of insulation and cut slits along the foam as I went to "attach" it to the grill and to go around the slits.

I think it came out pretty well!

 

Pipe Insulation for the Winter

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#108 OFFLINE   ptjones

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Posted 17 November 2017 - 10:03 AM

Just to remind CMAX Owners that the center grill should be covered at all times.  The lower grill has radiator, transmission, DC to DC inverter and A/C coolers so cover needs to be removed  when temps get high for these coolers. I monitor WT so when temp reaches 230*F it's time to remove part or all of lower cover or turn defrost, heater on to lower temps. :)  

 

Paul


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#109 OFFLINE   ptjones

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Posted 19 November 2017 - 09:51 AM

I thought I would mention for those who don't want to make or can't make Grill Covers I have 3 sets left, you can PM me for more info. It's getting cold and snow out there. :)

 

Paul








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