Daily gas mileage blab thread

[RobertSmalls]

It's been getting warmer. I've been getting commute mpgs in the upper 60's, which I haven't seen much since fall.

We had amazing weather today. It was 65°F and sunny. 72mpg on winter tires. I helped a friend tune up her bicycle this afternoon, and I installed my Potenza LRR's @52psi as soon as I got home. I'm really looking forward to driving to work tomorrow.

[RobertSmalls]

59.9mpg this morning, 68.7mpg this evening. It's not exactly warm out, and I wasn't trying for good FE in the AM, but I'm still a little disappointed. I was hoping the tires would be good for an instant +10mpg. I don't expect to have a >70mpg tank before May.

[user removed]

Todays mileage.

regards
Mech

[RobertSmalls]

Originally Posted by Old Mechanic

Impressive, especially for the CVT. What sort of roads was this on?

I did a 78mpg trip home from my mom's house, with a 10mi, 90.9mpg highway segment @ ~60mph, using the motto "lean burn or no burn". This means slowing down a little on uphills, and mostly confining myself to the right lane. There was a combination of crosswinds and tailwinds.

Does it take a boat tail to break 100mpg and the speed limit at the same time?

[user removed]

.3 mile out of neighborhood turn left. In summer idle stop engages at the end of the .3 mile section. Temp gauge hits 4 bars in one mile, 6 bars in 1.3 miles unless its very cold outside.

5 miles 4 lane (not divided) 55 mph 1 light at the end.

3 miles 45 MPH to second light.

Next 3 miles 12 traffic lights, timing is essential, average speed 47 MPH unless you catch a light for the first 10 miles.

elevation at my house is 70 feet highest very slight inclines and declines, steepest grades here are overpasses, one on this route, and one underpass.

Next mile, 4 lights turn right, 2 miles to next light, speed limits mostly 45 MPH with one 35MPH stretch.

Right at next light then two more lights in less than .5 mile, right to overpass, left at bottom of overpass at light, 2 mile 40 MPH stretch, left. .6 mile to stop sign, right 200 feet to light turn left. .6 mile to next light then left to destination.

I have broken 82 MPG on the inward run but never averaged 80 on the round trip. In ward is generally downhill with about a -55 foot elevation change, outbound is uphill.
Prevailing headwinds on return trip and general uphill climbs cost me 5 MPG average.

Grades are very slight, and I can climb them with very little loss in mileage, while mileage jumps to over 100 on the downhill slopes. Grades are probably less than 1% on average.

Railroad tracks to the right and Interstate to the left for first 5 miles, then city park left and Interstate right on the second 3 miles.

Today's trip was different routes including some Interstate, 4 stops, with one 1 hour cold soak restart.

Best ever mileage at 60 MPH was 82.7 on Interstate in heavy traffic with drafting help from trucks for 22.5 miles.

Best trip tank was 655 miles, most in one day, average road speeds of 55 MPH, at 70.2 MPG. Old US routes with elevation changes of over 2000 feet in some sections.

I use very slight P&G strategy optimized for uphill and downhill grades, acceleration rates are very slow, in the range of 1 MPH in 5-10 seconds, then semi-coasting at 100-150 MPG instantaneous readings. On steeper grades i will try to keep IMG above 50, while pegging IMG on downhills. Underpasses I let speed increase to use Inertia to get back up the upgrade portion of the underpass.



regards
Mech

[user removed]

A short trip last week, and a longer one today. The longer one was at an average speed of 60 MPH.

Last photo is this tank mileage so far.

regards
Mech

[user removed]

Todays run. Refill right at 600 miles, probably tomorrow.

regards
Mech

[sprkthead2]

25.7 mpg, first fillup in a 2001 Subaru Forester auto trans. My scanguageII is coming this week so hopefully I can improve on that.

[user removed]

Temps got to summertime levels here today.
From a cold start the mileages were
24 MPG .1 mile
35 MPG .3 mile
45 MPG 1 minute later
52 MPG 1 minute later
58 MPG 1 minute later
63 MPG 1 minute later
70 MPG average at 5.5 miles from the cold start.

Average speed on the stretch was 43-45 MPH.

regards
Mech

[RobertSmalls]

There are advantages to working late. I drove home at 7:30, so there wasn't much pressure from traffic on the expressway, and I broke my record.

80.1mpg on my 9.5mi, 55-60mph commute! I'm itching to see what I can do once it gets warmer than 60°F.

72.x mpg on the way in this morning.

These numbers are outliers, and I still expect mid-60mpg figures most days.