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What would Darth Vader do
Join Date: Feb 2001
Location: Orange, California
Posts: 1,324
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Decreased miles to the gallon??
When I first got my 944 a few years ago, it seemed I was getting 20-22 miles per gallon. Recently however, my mileage is something like 15 MPG. I change the air filter frequently. Car seems to be running well. My driving habits have not changed. Have made no modifications to the engine. Hmm...I have noticed that it idles slower now when it is "cold" (750 vs 950). After it has warmed up a bit, idle is fine.. I do know that I am due for new plugs, cap and rotor..
Anyone have any ideas?? Also, in California, what is the lowest octane rating I can use in my 83 944? ( looking to save money by going to 87 from 89 octane.. Thanks Gordon
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1983 944 (2002 to now) 3-924's (Sold) 1967-912 (Traded) NEVER put a used water pump in your car... |
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07-18-2005, 01:14 PM
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Join Date: Jun 2003
Location: Phoenix, AZ
Posts: 1,327
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i run 87.
plugs, cap and rotor couldn't hurt and may help.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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07-18-2005, 01:45 PM
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Join Date: May 2003
Location: Snohomish, WA
Posts: 105
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If your fuel pressure regulator is on the way out, you will burn more fuel. On the other hand, going from 20 to 15 seems a bit extreme.
Nigel
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'87 924S 5sp Slowly recovering from a warped head |
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07-18-2005, 02:19 PM
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could be a lot of things. As mentioned above, plus clogged cat... actually just about any tune-up item could also contribute
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-18-2005, 02:25 PM
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Having a big hole in the front doesn't help either.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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07-18-2005, 05:58 PM
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Join Date: Feb 2004
Location: Long Beach, CA
Posts: 1,041
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You should run 87 octane, according to the owner's manual. I need to run 89 in my 924S, now that I have a 10.2 compression engine, Iwas getting a slight knock when accelerating on a hill with 87, but not with 89.
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Still looking for the right deal on another P-car 1968 BMW 1600 2 liter 1956 Ford F250 1955 BMW R69 1999 Range Rover Callaway #011 of 220 (Yeah, as in Callaway Corvette...) |
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07-18-2005, 11:16 PM
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Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,935
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What about your O2 sensor?
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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07-19-2005, 04:27 AM
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What would Darth Vader do
Join Date: Feb 2001
Location: Orange, California
Posts: 1,324
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Hole in the front of what? We dont speak of such things!
QUOTE]Originally posted by SoCal Driver Having a big hole in the front doesn't help either. [/QUOTE]
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1983 944 (2002 to now) 3-924's (Sold) 1967-912 (Traded) NEVER put a used water pump in your car... Last edited by Gordon Rankin; 07-19-2005 at 05:41 AM.. |
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07-19-2005, 05:38 AM
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What would Darth Vader do
Join Date: Feb 2001
Location: Orange, California
Posts: 1,324
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Ok thanks all.. Will look into it all suggestions and report back..
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1983 944 (2002 to now) 3-924's (Sold) 1967-912 (Traded) NEVER put a used water pump in your car... |
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07-19-2005, 05:40 AM
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2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
1983 Porsche 944 2.5 liter
