924Board.org

[REMY]

hello all. i have had my stock 1987 924s for a while and am looking forward to driving it when all the white stuff melts.my question is what should i expect to get for gas millage? its stock so no chip...yet anyways.also would it make a great difference to run premium instead of regular?or should i run premium all the time?or just a preference thing.thanks for the upcoming advice.
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1987 PORSCHE 924S GUARDS RED

[RedChar]

The car requires premium gas (at least 90) so you should be running that regardless. I haven't had mine for very long and have been working on it, and it has been cold. So I got 13mpg last time I filled, which has been damn near all city driving, with heat blasting and lots of idling as I work on and test stuff.
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'87 924s - Haven't come up with a good nickname
'07 - MINI Cooper, base
'85 - Mercedes 300td LeMons veggie oil car - The Frau

[joecitizennn]

If you are getting 13 mpg something is not right. These cars should get between 22 to 26 mpg.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

[joecitizennn]

1987 924s cars can run on 87 just fine. The 1988 cars take 91 because they have different pistons, but owning a 1988 924se I can tell you that you can get away with running 87 just fine. I honestly have not noticed any difference in fuel economy or power between 87 and 91 octane in the 924s, however in turbocharged cars like the 951 I always run the highest octane I can buy for the detonation resistance.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

[John_AZ]

Safeway/Chevron/++++ regular gas
22-27MGP always
I have the modified throttle cam on.
I drive normally.
Bosch cheap copper plugs. No chips
Castrol GTX 20-50 year round

BUT---I have every maintenance item up to date.
New HG 3 years ago with full head machine work
New filters
Just put on a new fuel pressure damper--today.
Cam belts changed every 2 or 3 years.
Injectors cleaned and I put a can of Chevron injector cleaner in occasionally.
Tires at 29psi front --36psi rear
No vacuum leaks.

Here is another list:
http://reviews.ebay.com/Porsche-944-968-Modifications-and-Repairs_W0QQugidZ10000000008344064

Answer to your question---Premium gas is a waste of money in the '87

GL
John
_________________
'88 924S 67K
'87 924S 122K -DD
Past: 1970 914 1.7, 1977.5 924, 1979 924, +++== Gone, Past tutors

[REMY]

so regular gas is fine and i should get 22city 26highway.that sounds good for a stock model.
_________________
1987 PORSCHE 924S GUARDS RED

[bcblase]

If you get the FR Wilk chip and run it in "FR Wilk Mode" it will advance the timing a bit. If you do not run higher octane gas, you will get some pinging upon heavy acceleration. If you run it in stock mode, I suspect the lower octane gas would be fine.

I always run 92 octane or higher, but I don't drive it on the street much, and always run it with the chip turned on.
_________________
1987 Porsche 924S - track toy
1986 Mercedes 190E 2.3-16v - autocross
2007 F-150 5.4L Lariat Supercrew - tow beast
1994 Volvo 850 Race Wagon - 24 Hours of Lemons Car
2001 BMW 325xi - daily driver

[RedChar]

[joecitizennn]

[RedChar]

[REMY]

thats a good idea joe since thats a usual problem. good luck char.thanks again brad for the input about the chip youve been really good help.i think ill drive it this year stock and see how things go.im planning on using it as a daily driver for good weather etc.
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1987 PORSCHE 924S GUARDS RED

[TJC]

I just took a trip down to the Phoenix area Sunday to watch the Super Bowl at my brother's place (YEA PACKERS!!!) and fueled up in Wittman on my way home. 173.6 miles on the odo and it took 5.68 gallons...30.5 MPG! Average speed was around 70 MPH on this trip, with some "spurts" to stretch Blaze's legs a bit .

However the car is quite a bit lower than stock, therefore less air going under the car, which helps a bit.

In "mixed" driving I get about 19 MPG, but must admit I drive somewhat "spiritedly" .
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'95 BMW 318i/5 ..."Pearl"
'87 Porsche 944 NA... "Liebchen"
'02 Porsche Boxster..."Sunbeam"
'04 BMW X3..."Xander"
Still on the Prowl!

www.ttrs1.com

[Coolbri1191]

I get terrible gas mileage.. I think it's mostly due to having an automatic though. When I drove all highway to lake havasu, az, I got about 20-24MPG going 60-65MPH the whole way. Combined, going to work, school, city, etc... is a crappy 15MPG. I have tested that mileage over the course of 2 months and it was 15.46-something every time I filled up.
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Guards Red 1987 Porsche 924S (Automatic)
2001 Ford Explorer Sport (DD)

[mehall]

My 1987 owner's manual recomends "91 RON (87 CLC or AKI rating on fuel pumps in U.S.A.) minimum."

Regular is all that is needed.

1988 would be different because it has the higher compression of the 944 and about 15 more horses.
_________________
Mark

'87 White 924s manual
'94 Lexus LS400

www.kcws.org

[joecitizennn]

Here is a thread of interest on the octane ratings found in fuel doors.

http://www.924board.org/viewtopic.php?t=24638&highlight=fuel+door
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold