Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
Reply to this topicStart new topic
> Gasoline
Mavrick272
post Jun 4 2008, 10:34 AM
Post #1


Newbie
*

Group: Members
Posts: 41
Joined: 24-April 08
From: Rockford, MI
Member No.: 8,962
Region Association: Upper MidWest



Which kinda gas should I run in my 914?
should I use lead additives or just run premium in it?
or just run regular (crosses fingers)

This is really irrelevant, seeing as it's going to be a long time before she's on the road....but just thought I'd ask

thanks!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Spoke
post Jun 4 2008, 10:38 AM
Post #2


Jerry
*****

Group: Members
Posts: 7,079
Joined: 29-October 04
From: Allentown, PA
Member No.: 3,031
Region Association: None



I run premium w/o any additives.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
shelby/914
post Jun 4 2008, 10:48 AM
Post #3


Senior Member
***

Group: Members
Posts: 804
Joined: 24-August 05
From: Foxfield, Co
Member No.: 4,655
Region Association: Rocky Mountains



My basically stock '76 2.0L with euro pistions runs just fine on 87, which is midgrade at this altitude. have also ran 85 with no knock. experiment and see
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Gint
post Jun 4 2008, 11:18 AM
Post #4


Mike Ginter
***************

Group: Admin
Posts: 16,094
Joined: 26-December 02
From: Denver CO.
Member No.: 20
Region Association: Rocky Mountains



I've never put anything but regular gas in a 914. By regular I mean 85 at altitude and 87 at sea level.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Jun 4 2008, 11:41 AM
Post #5


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None



I've never run anything but lo-grade, cheap ass, water contaminated, towel-head juice.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Phoenix914
post Jun 4 2008, 11:55 AM
Post #6


Member
**

Group: Members
Posts: 389
Joined: 6-December 06
From: Oviedo, FL
Member No.: 7,322
Region Association: South East States



If if runs fine on regular, use it. There would be no benefit to using higher octane gas.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
John
post Jun 4 2008, 12:01 PM
Post #7


member? what's a member?
****

Group: Members
Posts: 3,393
Joined: 30-January 04
From: Evansville, IN (SIRPCA)
Member No.: 1,615
Region Association: None



You guys burn gasoline in your cars?

Out here in Kansas City, we have so much gasoline that we just burn it right in the storage facility........













Actually, lightning struck the tank last night and lit the fire.

low grade (87) gas works fine in stock 914's. I use 91 in my 3.2 powered 914.


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ericread
post Jun 4 2008, 01:10 PM
Post #8


The Viper Blue 914
****

Group: Members
Posts: 2,177
Joined: 7-December 07
From: Irvine, CA (The OC)
Member No.: 8,432
Region Association: Southern California



Awesome! Looks kinda like the Universal Studios fire on Sunday!!

The Univerals fire has been estimated a about $5Million in damages. With the cost of gas, that may be comparable to the Kansas City fire!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
6freak
post Jun 4 2008, 01:16 PM
Post #9


MR.C
****

Group: Members
Posts: 4,740
Joined: 19-March 08
From: Tacoma WA
Member No.: 8,829
Region Association: Pacific Northwest



QUOTE(Mavrick272 @ Jun 4 2008, 09:34 AM) *

Which kinda gas should I run in my 914?
should I use lead additives or just run premium in it?
or just run regular (crosses fingers)

This is really irrelevant, seeing as it's going to be a long time before she's on the road....but just thought I'd ask

thanks!


you cant aford gas...walk.......... (IMG:style_emoticons/default/sheeplove.gif) ben laden (IMG:style_emoticons/default/sheeplove.gif) G.W Bush
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Jun 4 2008, 01:19 PM
Post #10


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None



My issue with premium gas is that I have to advance my timing pretty far to get my teener to run right. I'm backing off that stuff and have moved to mid grade (which is mixed inside the pump from 1 part regular, 1 part premium, there are only 2 gas types, regular and premium, fyi)

I havent re-timed yet, but will this weekend...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Gint
post Jun 4 2008, 01:33 PM
Post #11


Mike Ginter
***************

Group: Admin
Posts: 16,094
Joined: 26-December 02
From: Denver CO.
Member No.: 20
Region Association: Rocky Mountains



You're wasting your money.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Spoke
post Jun 4 2008, 06:42 PM
Post #12


Jerry
*****

Group: Members
Posts: 7,079
Joined: 29-October 04
From: Allentown, PA
Member No.: 3,031
Region Association: None



Looks like I'm the only one so far using premium....Hmm....

The owners manual for my '71 1.7L says "98 Octane (Premium)"

and the owners manual for my '74 2.0L say 91 RON

What is the conversion from RON to R+M/2? Is 91 RON regular or premium?

Price diff these days between regular and premium is still about 20 cents/gal. For a 10 gallon fillup @ $4/gal, diff is $2 on $40.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BMartin914
post Jun 4 2008, 07:16 PM
Post #13


|||
***

Group: Members
Posts: 1,408
Joined: 30-May 04
From: Oregon
Member No.: 2,128
Region Association: Pacific Northwest



QUOTE(Spoke @ Jun 4 2008, 04:42 PM) *

Looks like I'm the only one so far using premium....Hmm....

The owners manual for my '71 1.7L says "98 Octane (Premium)"

and the owners manual for my '74 2.0L say 91 RON

What is the conversion from RON to R+M/2? Is 91 RON regular or premium?

Price diff these days between regular and premium is still about 20 cents/gal. For a 10 gallon fillup @ $4/gal, diff is $2 on $40.

Gint is right.

I seriously doubt you found ANYTHING in your manual for your 1971 Porsche that indicates to use 98 octane.

It is quite likely though that your manual and your car direct you to use 91 RON which is a standard not used in the United States...find the equivalent octane rating by taking (RON+MON)/2, you'll get the octane rating of the fuel.

You will find in most situations that (91 RON + X MON)/2 equates to regular unleaded gasoline.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Spoke
post Jun 4 2008, 07:46 PM
Post #14


Jerry
*****

Group: Members
Posts: 7,079
Joined: 29-October 04
From: Allentown, PA
Member No.: 3,031
Region Association: None



From the owners manual for my '71 1.7L:


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
John
post Jun 4 2008, 10:02 PM
Post #15


member? what's a member?
****

Group: Members
Posts: 3,393
Joined: 30-January 04
From: Evansville, IN (SIRPCA)
Member No.: 1,615
Region Association: None



QUOTE(ericread @ Jun 4 2008, 11:10 AM) *

Awesome! Looks kinda like the Universal Studios fire on Sunday!!

The Univerals fire has been estimated a about $5Million in damages. With the cost of gas, that may be comparable to the Kansas City fire!



Our little fire was probably a little more than $5M.

Supposedly there was approximately 1.2M gallons burned.

I wonder what their "carbon footprint" was.....

Our local gas prices have not increased. (YET)

Burn the cheapest gas your car can use without knocking/pinging.

In Missouri, there is no law requiring stating if gas is 100% or an ethanol blend. Apparently, most all of it is a blend and there is no difference (in Missouri) in actual octane rating between midgrade gas and lowgrade gas. The news did an expose' on the whole thing a few months back. Only the sticker (and price) on the pump is different.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
PeeGreen 914
post Jun 4 2008, 11:12 PM
Post #16


Just when you think you're done...wait, there is more..lol
**********

Group: Members
Posts: 10,219
Joined: 21-September 06
From: Seattle, WA... actually Everett
Member No.: 6,884
Region Association: Pacific Northwest



QUOTE(Spoke @ Jun 4 2008, 06:46 PM) *

From the owners manual for my '71 1.7L:


Looks like it says 98 octane to me (IMG:style_emoticons/default/confused24.gif)

I run 110 mixed with premium.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
eg914
post Jun 5 2008, 12:12 AM
Post #17


Member
**

Group: Members
Posts: 319
Joined: 17-June 04
From: Elk Grove, CA
Member No.: 2,223
Region Association: None



I have a 1.7L in my car, and run premium. I tried running lower grade, and had pinging and run-on issues. Is the compression ratio in the 1.7L engine higher than the larger displacements?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
IronHillRestorations
post Jun 5 2008, 07:26 AM
Post #18


I. I. R. C.
*****

Group: Members
Posts: 6,768
Joined: 18-March 03
From: West TN
Member No.: 439
Region Association: None



The higher the octane the slower the burn. The higher octane, the more additives the fuel has in it, which ends up on the top of your piston and on you cylinder head. The more carbon build up you get means it raises the compression and you get carbon hot spots on the piston or cylinder head which results in pre-ignition, so you run higher octane fuel and the endless cycle continues.

Always run the lowest octane you can without pre-ignition (pinging).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Jun 5 2008, 07:45 AM
Post #19


Custom Member
***************

Group: Members
Posts: 24,638
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States



QUOTE(SLITS @ Jun 4 2008, 01:41 PM) *

I've never run anything but lo-grade, cheap ass, water contaminated, towel-head juice.


(IMG:style_emoticons/default/agree.gif)
These aircooled 4 cylinder cars can run on anything...that is by design.
With 20Mm beetles sold, loads of buses sold worldwide...the motor (with its low compression, and restricted heads/exhaust) can run on any fuel worldwide.

I shop for the cheapest gas, period.

I did, while autoxing, blend it with race fuel to net 105 octane...but the race fuel is now $8.00 per gallon and I dont rce my car anymore...

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post Jun 5 2008, 09:54 AM
Post #20


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,192
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch



with the carbs, i found the idle increased when i dropped down to mid-grade a few years back. in addition to the idle speed screws, the idle a/f mixture had to be reset as well.

k
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 31st October 2024 - 05:50 PM