 MPG change, where to start looking? |
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| 914Bryan |
 Feb 10 2013, 08:23 AM
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Member  Group: Members Posts: 190 Joined: 6-June 11 From: Orange County Member No.: 13,162 Region Association: Southern California  |
I know this isn't an exciting high performance question, but a question just the same.
I'm having an issue with the mileage my 74 2.0 DJet and am wondering where to start looking for the problem. I commute 60 miles each way to work (120 total). My driving is 98% freeway, non rush hours so a steady 75 mph, motor is turning 3200. I could always count on 32mpg, day in, day out. Over the last two months, it has slipped to 28mpg. I burn a tank a week, so this has been about 8 tanks of gas that I have noticed this. Engine is running fine, no change in performance. Would a tardy valve adjustment cause this? I'm a little over 6k since my last one. Any ideas? |
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| euro911 |
Feb 10 2013, 08:21 PM
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,885 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California 
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Having the same issue with my Toyota trucks. Been loosing 2~3 mpg over the past couple of month on both of them. Driving habits haven't changed, so I'm suspecting it's the cheap-ass gas they're forcing on us (IMG:style_emoticons/default/mad.gif)
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Posts in this topic
914Bryan MPG change, where to start looking? Feb 10 2013, 08:23 AM
jonvo4591 I was in an autotive training class last week and ... Feb 10 2013, 08:43 AM
JamesM
I was in an autotive training class last week and... Feb 10 2013, 10:20 AM somd914 Have you noticed any other issues with the engine?... Feb 10 2013, 09:31 AM rick 918-S Fuel was my thought also. There is no good reason ... Feb 10 2013, 09:37 AM tscrihfield
Fuel was my thought also. There is no good reason... Feb 10 2013, 09:54 AM 3d914 Ditto on the points. And when you check them, don... Feb 10 2013, 10:04 AM Cupomeat With everyone else's advice, I'd go over t... Feb 10 2013, 10:22 AM Vacca Rabite
Now, strangely my audi 1.8t motor seems to give ... Feb 10 2013, 10:33 AM Cupomeat
Now, strangely my audi 1.8t motor seems to give... Feb 10 2013, 10:34 AM 6freak
Now, strangely my audi 1.8t motor seems to give... Feb 11 2013, 11:16 AM rick 918-S Fast check for the points is ignition timing will ... Feb 10 2013, 10:39 AM Tom_T
I know this isn't an exciting high performanc... Feb 10 2013, 01:33 PM Dave_Darling It is normal for your fuel economy to suffer when ... Feb 10 2013, 02:53 PM bulitt Rear brakes dragging? Feb 10 2013, 03:06 PM bandjoey IS THERE A WAY to test the gasoline to see the alc... Feb 10 2013, 07:53 PM Vacca Rabite sure. run to flaps and get some test kits. they ... Feb 10 2013, 08:03 PM 914Bryan Thanks everyone, this is all great advice! Mos... Feb 10 2013, 08:09 PM Katmanken Winter gas mix has more aromatic volatiles in the ... Feb 10 2013, 08:52 PM jonvo4591 To do a down and drity alcohol content test, you... Feb 10 2013, 09:34 PM r_towle our Prius gets almost 60mpg in the summer.
In the ... Feb 11 2013, 10:23 AM |
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