ercedes@okiebenz.com
Subject: Re: [MBZ] compression ratio 300SL
even though continued use of regular may not damage your engine, it will
damage the cats
Harry
69 280 SEL 135,000 Miles
72 350SL 118,000 Miles
2004 VW Passat 4 Motion
1999 Mazda Miata
-Original Message-
From: [EMAIL PRO
TECTED]
To: mercedes@okiebenz.com
Sent: Fri, 5 Jan 2007 1:04 AM
Subject: Re: [MBZ] compression ratio 300SL
TimothyPilgrim wrote:
> Funny, my motorcycle (1999 Honda CBR1100XX) has a ratio of 11:1 and it
> runs on RUG-87. It also Compression ratio can't be the only factor in
> determinin
:21 PM
Subject: Re: [MBZ] compression ratio 300SL
James Zavesky wrote:
> I'll bring in E320's from time to time and irregardless if it's a small 6, 8
> or 12 cylinder they all ping when run on back to back tanks of regular. We
> alternate tanks between Shell premium and supe
2007 7:07 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] compression ratio 300SL
Compression ratio is the biggest factor in octane requirement..Higher
compression = more chance of preignition and dictates use of higher octane
fuel
Ask any performance engine builder if an en
minimum.
Timing is the next most relevant factor.
Mike
- Original Message -
From: "TimothyPilgrim" <[EMAIL PROTECTED]>
To:
Sent: Thursday, January 04, 2007 11:34 PM
Subject: Re: [MBZ] compression ratio 300SL
Funny, my motorcycle (1999 Honda CBR1100XX) has a rati
TimothyPilgrim wrote:
> Funny, my motorcycle (1999 Honda CBR1100XX) has a ratio of 11:1 and it
> runs on RUG-87. It also Compression ratio can't be the only factor in
> determining octane rating required.
>
Modern electronic ignition and fuel injection have allowed manufacturers
to run higher c
Matic
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Date: Thu, 4 Jan 2007 17:55:39 -0500
From: "Mike Canfield" <[EMAIL PROTECTED]>
Subject: Re: [MBZ] compression ratio 300SL
That's what I was looking for...Compression ratio that high most
ce
-
From: "Marshall Booth" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List"
Sent: Thursday, January 04, 2007 9:13 PM
Subject: Re: [MBZ] compression ratio 300SL
Prior to 1972 ALL Mercedes gasoline engines delivered to the US required
91 octane, between '72
Prior to 1972 ALL Mercedes gasoline engines delivered to the US required
91 octane, between '72 and '85 87 octane fuel was fine (for US delivered
cars). Starting in 1986 all models except the '86 190E 2.3 required 91
octane ('87 and later 190E 2.3 required 91 octane too) and that is true
thru 2
James Zavesky wrote:
> I'll bring in E320's from time to time and irregardless if it's a small 6, 8
> or 12 cylinder they all ping when run on back to back tanks of regular. We
> alternate tanks between Shell premium and super with no ill effects on all
> the cars. knocking is non existant. Won't r
ratio 300SL
That's what I was looking for...Compression ratio that high most
certainly requires high test.
Thanks, Mike
- Original Message -
From: <[EMAIL PROTECTED]>
To:
Sent: Thursday, January 04, 2007 5:51 PM
Subject: Re: [MBZ] compression ratio 300SL
> If th
That's what I was looking for...Compression ratio that high most
certainly requires high test.
Thanks, Mike
- Original Message -
From: <[EMAIL PROTECTED]>
To:
Sent: Thursday, January 04, 2007 5:51 PM
Subject: Re: [MBZ] compression ratio 300SL
If thats the 300 SL I
If thats the 300 SL I'm thinking about its 10.5:1
Harry
69 280 SEL 135,000 Miles
72 350SL 118,000 Miles
2004 VW Passat 4 Motion
1999 Mazda Miata
-Original Message-
From: [EMAIL PROTECTED]
To: mercedes@okiebenz.com
Sent: Thu, 4 Jan 2007 2:19 PM
Subject: [MBZ] compression
: "Mike Canfield" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List"
Sent: Thursday, January 04, 2007 5:13 PM
Subject: Re: [MBZ] compression ratio 300SL
> LOLOLOLOL...I don't own one Jim...Someone else in a previous post
> does...I know MB says to
"Mike Canfield" <[EMAIL PROTECTED]> writes:
> LOLOLOLOL...I don't own one Jim...Someone else in a previous post
> does...I know MB says to run premium fuel but I want to know the
> compression ratio so I can see if that is the reason why.
MB gasoline engines are usually, if not excl
IL PROTECTED]>
To: "Mercedes Discussion List"
Sent: Thursday, January 04, 2007 4:28 PM
Subject: Re: [MBZ] compression ratio 300SL
should say premium inside the fuel filler door, unless it's a repaint.
Jim
- Original Message -
From: "Mike Canfield" <
should say premium inside the fuel filler door, unless it's a repaint.
Jim
- Original Message -
From: "Mike Canfield" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List"
Sent: Thursday, January 04, 2007 4:18 PM
Subject: Re: [MBZ] compression ra
iscussion List"
Sent: Thursday, January 04, 2007 3:19 PM
Subject: [MBZ] compression ratio 300SL
Mike
As long as the compression amongst all the cylinders is within a couple of
percent you should be fine. If you see one cylinder that is significantly
different redo the test and proceed with furth
Mike
As long as the compression amongst all the cylinders is within a couple of
percent you should be fine. If you see one cylinder that is significantly
different redo the test and proceed with furthur diagnosis. Also you may
want to do a wet and dry test.
Also consider doing a leak down test in
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