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Old 05-19-2018, 10:45 PM   #90 (permalink)
mpg_numbers_guy
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Location: VA
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Toby - '13 Toyota Prius C
90 day: 61.95 mpg (US)

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Quote:
Originally Posted by 19bonestock88 View Post
Yeah, a full block would be entirely too much for any significant distance... right now it’s about perfect, even for 85-90* ambient temps... but my commute is like 2.5mi and with using P&G, my coolant temps barely break 140*... in theory as long as I didn’t get over 210* I could block the whole thing and be fine, knowing that if I tried to do any longer trip I’d have to remove some blocking...

There are no other routes to take to work that don’t add massive distance/time... there is one hill and a traffic light that work against me... there are two left turns and one right, which sometimes has me idling at an intersection for a while...

While on the rural roads, my 2.2L engine displacement isn’t much of a hindrance, in town it really sucks the fuel...
If 2.5 miles has you only at 140F then you probably are safe to block more grille off. My car is usually at 140F at the end of the 1st mile. I find that P&G-ing at slower speeds helps warmup faster. I live on a gravel road, and it's 0.6 miles to the nearest paved road that takes me anywhere, so I generally P&G around 19-27-19 and am usually mid to upper 20s MPG by the end of that and between 125F and 135F by the end of it due to going slower and giving the engine more warm up time. If I drove faster, say, 30 mph I'd barely be over 110F by the end and I'd be lucky if my MPGs by the end of the gravel road were above 20.

Do you do any EOC with your manual?
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2013 Toyota Prius C 2 (my car)


2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car)
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