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> Gasoline
Mavrick272
post Jun 4 2008, 10:34 AM
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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!
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Spoke
post Jun 4 2008, 10:38 AM
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I run premium w/o any additives.
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shelby/914
post Jun 4 2008, 10:48 AM
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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
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Gint
post Jun 4 2008, 11:18 AM
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I've never put anything but regular gas in a 914. By regular I mean 85 at altitude and 87 at sea level.
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SLITS
post Jun 4 2008, 11:41 AM
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I've never run anything but lo-grade, cheap ass, water contaminated, towel-head juice.
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Phoenix914
post Jun 4 2008, 11:55 AM
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If if runs fine on regular, use it. There would be no benefit to using higher octane gas.
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John
post Jun 4 2008, 12:01 PM
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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.


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ericread
post Jun 4 2008, 01:10 PM
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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!
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6freak
post Jun 4 2008, 01:16 PM
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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
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purple
post Jun 4 2008, 01:19 PM
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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...
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Gint
post Jun 4 2008, 01:33 PM
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You're wasting your money.
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Spoke
post Jun 4 2008, 06:42 PM
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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.
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BMartin914
post Jun 4 2008, 07:16 PM
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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.
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Spoke
post Jun 4 2008, 07:46 PM
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From the owners manual for my '71 1.7L:


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John
post Jun 4 2008, 10:02 PM
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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.
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PeeGreen 914
post Jun 4 2008, 11:12 PM
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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.
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eg914
post Jun 5 2008, 12:12 AM
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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?
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IronHillRestorations
post Jun 5 2008, 07:26 AM
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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).
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r_towle
post Jun 5 2008, 07:45 AM
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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
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rhodyguy
post Jun 5 2008, 09:54 AM
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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
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