Gas Mileage
Contributors
Joined: Jul 2005
Posts: 7,790
Likes: 0
From: Helsinki, Finland
My Ride: My ex-ride: EU '08 LCI 520dA. Space Grey, Sport Seats in Black Leather/Fabric Anthracite, Sport Steering Wheel, A/C with Extended Features, Hi-Fi Speakers, Cup Holders, Cruise with Braking function, Folding Rear Seats, Xenons, Park Distance Control.
Originally Posted by grungyspeed' date='Sep 9 2005, 04:52 PM
I recently took a five hour trip on open highways with my 545.? I averaged about 27 miles to the gallon on the highway at 85mph per my OBC.? Any of you guy experience similar mileage?
[snapback]168717[/snapback]
Welcome to this great forum
.You might first want to explore all the features and data you'll find around here.
Use also the Search mode
You'll find the answer to your question here:
http://forums.e60.net/index.php?showtopic=...5&hl=gas+milage
This IS a great site!
Contributors
Joined: Jun 2004
Posts: 3,618
Likes: 0
From: FLA - East Coast, USA
My Ride: (USA) 645Ci, Silver Gray, Chateau, Cold Weather PKG, Premium Sound PKG, Sport PKG, Step, NAV [Std Equip in 645], HUD, Satellite (SIRIUS) Radio, Aux Input, Bluetooth enabled using iPhone 3GS w/ adapter cradle - Build date - 01/05, Baby delivered 2/24/05
The faster I go the better the MPG 
Contributors
Joined: Aug 2005
Posts: 6,554
Likes: 0
From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by grungyspeed' date='Sep 9 2005, 09:52 AM
I recently took a five hour trip on open highways with my 545.? I averaged about 27 miles to the gallon on the highway at 85mph per my OBC.? Any of you guy experience similar mileage?
[snapback]168717[/snapback]
Members
Joined: Jul 2005
Posts: 52
Likes: 0
Yes, highway trips at 80 I'd get about 28-29 mpg in my 530 and about 27-28 in the 645.
IMHO, the 645 could use some taller legs in 6th gear. I understand the 545 has taller gearing in 6th. You are a little bit too far "into the candy" in 6th gear when high speed cruising in the 645ci.
When doing 80+, the engine is revving a little too high than it needs to IMHO. Good for performance, but bad for economy. The 4.4l V8 has enough grunt around 2000 rpm that it should be geared for 2000rpm at 80mph, not 2400 or so.
My Vette gets 33 mpg highway at 80mph. 80 mph is right at 2000 rpm with the manual trans. Actually it gets30+ all the way up to past 100 mph.
IMHO, the 645 could use some taller legs in 6th gear. I understand the 545 has taller gearing in 6th. You are a little bit too far "into the candy" in 6th gear when high speed cruising in the 645ci.
When doing 80+, the engine is revving a little too high than it needs to IMHO. Good for performance, but bad for economy. The 4.4l V8 has enough grunt around 2000 rpm that it should be geared for 2000rpm at 80mph, not 2400 or so.
My Vette gets 33 mpg highway at 80mph. 80 mph is right at 2000 rpm with the manual trans. Actually it gets30+ all the way up to past 100 mph.
Contributors
Joined: Jun 2004
Posts: 3,618
Likes: 0
From: FLA - East Coast, USA
My Ride: (USA) 645Ci, Silver Gray, Chateau, Cold Weather PKG, Premium Sound PKG, Sport PKG, Step, NAV [Std Equip in 645], HUD, Satellite (SIRIUS) Radio, Aux Input, Bluetooth enabled using iPhone 3GS w/ adapter cradle - Build date - 01/05, Baby delivered 2/24/05
Originally Posted by TB CD' date='Sep 10 2005, 08:58 PM
Yes, highway trips at 80 I'd get about 28-29 mpg in my 530 and about 27-28 in the 645.
IMHO, the 645 could use some taller legs in 6th gear.? I understand the 545 has taller gearing in 6th.? You are a little bit too far "into the candy" in 6th gear when high speed cruising in the 645ci.
When doing 80+, the engine is revving a little too high than it needs to IMHO.? Good for performance, but bad for economy.? The 4.4l V8 has enough grunt around 2000 rpm that it should be geared for 2000rpm at 80mph, not 2400 or so.
My Vette gets 33 mpg highway at 80mph.? 80 mph is right at 2000 rpm with the manual trans.? Actually it? gets30+ all the way up to past 100 mph.
IMHO, the 645 could use some taller legs in 6th gear.? I understand the 545 has taller gearing in 6th.? You are a little bit too far "into the candy" in 6th gear when high speed cruising in the 645ci.
When doing 80+, the engine is revving a little too high than it needs to IMHO.? Good for performance, but bad for economy.? The 4.4l V8 has enough grunt around 2000 rpm that it should be geared for 2000rpm at 80mph, not 2400 or so.
My Vette gets 33 mpg highway at 80mph.? 80 mph is right at 2000 rpm with the manual trans.? Actually it? gets30+ all the way up to past 100 mph.
[snapback]169289[/snapback]
See here (corrected in edit):
Contributors
Joined: Jun 2004
Posts: 434
Likes: 0
From: California
grungyspeed:
Welcome to the forum. I just returned from a 700 mile round trip, almost all freeway. OBC put mileage at 29.5. When I filled my tank and did the math, I got 22.5 miles per gallon. The OBC had my average speed at 78.3 - I am pretty sure that was right.
Welcome to the forum. I just returned from a 700 mile round trip, almost all freeway. OBC put mileage at 29.5. When I filled my tank and did the math, I got 22.5 miles per gallon. The OBC had my average speed at 78.3 - I am pretty sure that was right.
Thread
Thread Starter
Forum
Replies
Last Post
bestofthebest
Complete Car Sales
4
Mar 28, 2016 02:47 PM