Re: [MBZ] Premium Gas or Not?
Don - Just wanted to add that it is really a function of the compresson ratio of the engine. If your compression ratio gets up towards 10:1 it really should be running the good stuff. Most modern engines these days have knock sensors or detonation sensors that retard the spark when it begins to detonate to keep from damaging the engine. The late timing adversely affects performance and usually fuel mileage too. You might want to try the premium and see if running the cheaper price stuff is really worth it in the long run. Barry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Marshall Booth Sent: Friday, January 20, 2006 12:37 PM To: Mercedes Discussion List Subject: Re: [MBZ] Premium Gas or Not? Donald Snook wrote: > I have not had a gas Mercedes since 1998 and it was a 1971 (that > originally ran on regular i.e. leaded gas), so I am not clear on the > premium gas requirement on newer gasser MB's. Do I really need to run > premium in my 1990 300SEL? I am pretty sure the simple answer will be > yes. Just wondering if anyone had thoughts on this issue. The M103 engine will run on less than premium, but will NOT run as it was intended to run. Marshall
Re: [MBZ] Premium Gas or Not?
Donald Snook wrote: I have not had a gas Mercedes since 1998 and it was a 1971 (that originally ran on regular i.e. leaded gas), so I am not clear on the premium gas requirement on newer gasser MB's. Do I really need to run premium in my 1990 300SEL? I am pretty sure the simple answer will be yes. Just wondering if anyone had thoughts on this issue. The M103 engine will run on less than premium, but will NOT run as it was intended to run. Marshall -- Marshall Booth (who doesn't respond to unsigned questions) "der Dieseling Doktor" [EMAIL PROTECTED] '87 300TD 182Kmi, '84 190D 2.2 229Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi
Re: [MBZ] Premium Gas or Not?
my 560 gets the same mileage and has the same amount of power with 87 John Berryman wrote: On Jan 19, 2006, at 4:02 PM, Tom Hargrave wrote: I wonder if the 420SEL or 560SEL will run on less than premium and if so, what is the minimum octane rating that these engines will run? I run a lot of miles /year and I've started to see some deals with both cars. Thanks, Tom Hargrave You could probably screw around with ignition timing and get away with 87 octane. You'll lose a little power but that's the way the cookie crumbles. Johnny B iMac therefore I am ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net -- Kaleb C. Striplin/Claremore, OK 89 560SEL, 87 300SDL, 85 380SE, 85 300D, 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 http://www.striplin.net
Re: [MBZ] Premium Gas or Not?
sorry to pipe in here, but 2k seems way too high to me for one of those. IT should have already had new tires for that kind of money unless its just showroom nice Donald Snook wrote: Rick Knoble wrote: "1992 Olds 98 Regency 121K FOR SALE CHEAP How much for the geezer-mobile?" $2000. The dealership selling it wanted $3995 (which I admit is insane). I bought it for $2K. I also put brand new tires on it (less than 3K miles on them now) replaced front brakes (pads AND new rotors), changed tranny fluid, and replaced the outside temperature sensor. It is good car. It is NOT sexy to look at (if you are under 70). VERY nice interior. I can email pics later if anyone is really interested. Selling it for $2k means I am losing money, but no sense in keeping it. Donald H. Snook McDonald, Tinker, Skaer, Quinn & Herrington, P.A. 300 West Douglas P.O. Box 207 Wichita, Kansas 67201 0207 Tel. (316) 263-5851 This confidential message may be subject to the attorney-client privilege or protected by the attorney work-product doctrine. If you have recieved this message in error, please delete it and notify me. ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net -- Kaleb C. Striplin/Claremore, OK 89 560SEL, 87 300SDL, 85 380SE, 85 300D, 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 http://www.striplin.net
Re: [MBZ] Premium Gas or Not?
the 560 will run fine on 87, but yes, I think the 6's need something higher. Kevin wrote: On Thu, Jan 19, 2006 at 01:31:37PM -0600, Donald Snook wrote: I have not had a gas Mercedes since 1998 and it was a 1971 (that originally ran on regular i.e. leaded gas), so I am not clear on the premium gas requirement on newer gasser MB's. Do I really need to run premium in my 1990 300SEL? I am pretty sure the simple answer will be yes. Just wondering if anyone had thoughts on this issue. I've heard Kaleb mention that his 560 was satisfied with less than premium, but am not so sure about the sixes. I'd probably try it with a partial tank - if it's unhappy with it, it'll let you know. K ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net -- Kaleb C. Striplin/Claremore, OK 89 560SEL, 87 300SDL, 85 380SE, 85 300D, 84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D, 76 450SEL, 76 240D, 76 300D, 74 240D, 69 250 http://www.striplin.net
Re: [MBZ] Premium Gas or Not?
Hey Peter, I've always found that a good rule to follow regarding octane is the higher the engine compression the higher the octane. High octane fuel burns slower which allows for a more complete combustion. Most engines with a 10-1 or higher compression require higher octane fuel because it burns slower and because higher compression engines will knock severely if the fuel burns to fast just my 2 cents 69 280 SEL 120,000 Miles 72 350SL 108,000 Miles 2004 VW Passat 4 Motion 1999 Mazda Miata -Original Message- From: Peter Frederick <[EMAIL PROTECTED]> To: Mercedes Discussion List <[EMAIL PROTECTED]> Sent: Thu, 19 Jan 2006 18:18:15 -0600 Subject: Re: [MBZ] Premium Gas or Not? My rule of thumb on the octane issue is thus: If you have KE-Jetronic and no knock sensor, do NOT use anything but premium on the highway. Midgrade is OK around town, but you really need the knock protection on the interstate as the engine cannot retard the ignition timing if it knocks. Burnt valves is the usual result. On later models with LH-Jetronic and knock sensors, remember that retarding the timing will reduce both power and milage -- you will have to run both, keep accurate records, and decide whether the lower price is actually a savings for you own particular circumstances. I know that on several of my older cars, including my Mom's old Fairmont station wagon and the work van (with 300,000 miles on it!), the accumulation of crud on the piston crowns raised the compression ratio enough that regular rattled pretty badly. Premium cured the spark knock, and the increase in power and milage more than paid the difference. It is entirely possible to have the milage drop so badly from retarded timing that it's more expensive to run regular than premium. You also risk damage to the catalytic convertor/oxygen sensor running late timing on acceleration all the time. Peter ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net ___ Try the New Netscape Mail Today! Virtually Spam-Free | More Storage | Import Your Contact List http://mail.netscape.com
Re: [MBZ] Premium Gas or Not?
My rule of thumb on the octane issue is thus: If you have KE-Jetronic and no knock sensor, do NOT use anything but premium on the highway. Midgrade is OK around town, but you really need the knock protection on the interstate as the engine cannot retard the ignition timing if it knocks. Burnt valves is the usual result. On later models with LH-Jetronic and knock sensors, remember that retarding the timing will reduce both power and milage -- you will have to run both, keep accurate records, and decide whether the lower price is actually a savings for you own particular circumstances. I know that on several of my older cars, including my Mom's old Fairmont station wagon and the work van (with 300,000 miles on it!), the accumulation of crud on the piston crowns raised the compression ratio enough that regular rattled pretty badly. Premium cured the spark knock, and the increase in power and milage more than paid the difference. It is entirely possible to have the milage drop so badly from retarded timing that it's more expensive to run regular than premium. You also risk damage to the catalytic convertor/oxygen sensor running late timing on acceleration all the time. Peter
Re: [MBZ] Premium Gas or Not?
Not only power but mileage as well. 87 is cat wee not fit for Benz consumption. It has to be remembered that Merc engines are build well and need good food to do well. If you want to cheap out buy a cheap brand car. By the way, the later engines are self adjusting as far as timing goes so there is no need to get the timing light out. Hendrik - Original Message - From: "John Berryman" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Mercedes Discussion List" <[EMAIL PROTECTED]> Sent: Friday, January 20, 2006 8:15 AM Subject: Re: [MBZ] Premium Gas or Not? On Jan 19, 2006, at 4:02 PM, Tom Hargrave wrote: I wonder if the 420SEL or 560SEL will run on less than premium and if so, what is the minimum octane rating that these engines will run? I run a lot of miles /year and I've started to see some deals with both cars. Thanks, Tom Hargrave You could probably screw around with ignition timing and get away with 87 octane. You'll lose a little power but that's the way the cookie crumbles. Johnny B iMac therefore I am ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.338 / Virus Database: 267.14.19/231 - Release Date: 16/01/2006
Re: [MBZ] Premium Gas or Not?
Look in the owners manual and all will be revealed. The problem is that low octane fuel will make the engine run like poo because the thing will retard itself to compensate and therefore you will have less power and higher fuel consumption. I run my 230E on 95 octane (over here 91 is standard and 98 is ultra premium) which it seems happy with. I have tried 91 but it sounds like a diesel (no self retardation in the K-jetronic setup) and with 98 there seems to be no difference when compared to 95. Hendrik - Original Message - From: "Donald Snook" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, January 20, 2006 6:01 AM Subject: [MBZ] Premium Gas or Not? I have not had a gas Mercedes since 1998 and it was a 1971 (that originally ran on regular i.e. leaded gas), so I am not clear on the premium gas requirement on newer gasser MB's. Do I really need to run premium in my 1990 300SEL? I am pretty sure the simple answer will be yes. Just wondering if anyone had thoughts on this issue. Donald H. Snook 1990 300SEL 122K arriving soon. 1992 Olds 98 Regency 121K FOR SALE CHEAP 1998 Ford Explorer 97K (Wife's car) ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net -- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.338 / Virus Database: 267.14.19/231 - Release Date: 16/01/2006
Re: [MBZ] Premium Gas or Not?
On Jan 19, 2006, at 4:02 PM, Tom Hargrave wrote: I wonder if the 420SEL or 560SEL will run on less than premium and if so, what is the minimum octane rating that these engines will run? I run a lot of miles /year and I've started to see some deals with both cars. Thanks, Tom Hargrave You could probably screw around with ignition timing and get away with 87 octane. You'll lose a little power but that's the way the cookie crumbles. Johnny B iMac therefore I am
Re: [MBZ] Premium Gas or Not?
Rick Knoble wrote: "1992 Olds 98 Regency 121K FOR SALE CHEAP How much for the geezer-mobile?" $2000. The dealership selling it wanted $3995 (which I admit is insane). I bought it for $2K. I also put brand new tires on it (less than 3K miles on them now) replaced front brakes (pads AND new rotors), changed tranny fluid, and replaced the outside temperature sensor. It is good car. It is NOT sexy to look at (if you are under 70). VERY nice interior. I can email pics later if anyone is really interested. Selling it for $2k means I am losing money, but no sense in keeping it. Donald H. Snook McDonald, Tinker, Skaer, Quinn & Herrington, P.A. 300 West Douglas P.O. Box 207 Wichita, Kansas 67201 0207 Tel. (316) 263-5851 This confidential message may be subject to the attorney-client privilege or protected by the attorney work-product doctrine. If you have recieved this message in error, please delete it and notify me.
Re: [MBZ] Premium Gas or Not?
http://phoenix.craigslist.org/car/125786668.html You mean like that? Bob Rentfro '77 300D 148K '01 VW Beetle TDI 61K Litchfield Park, AZ - Original Message - From: "Tom Hargrave" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" <[EMAIL PROTECTED]> Sent: Thursday, January 19, 2006 2:02 PM Subject: Re: [MBZ] Premium Gas or Not? I wonder if the 420SEL or 560SEL will run on less than premium and if so, what is the minimum octane rating that these engines will run? I run a lot of miles /year and I've started to see some deals with both cars. Thanks, Tom Hargrave 256-656-1924 www.kegkits.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kevin Sent: Thursday, January 19, 2006 2:49 PM To: Mercedes Discussion List Subject: Re: [MBZ] Premium Gas or Not? On Thu, Jan 19, 2006 at 01:31:37PM -0600, Donald Snook wrote: I have not had a gas Mercedes since 1998 and it was a 1971 (that originally ran on regular i.e. leaded gas), so I am not clear on the premium gas requirement on newer gasser MB's. Do I really need to run premium in my 1990 300SEL? I am pretty sure the simple answer will be yes. Just wondering if anyone had thoughts on this issue. I've heard Kaleb mention that his 560 was satisfied with less than premium, but am not so sure about the sixes. I'd probably try it with a partial tank - if it's unhappy with it, it'll let you know. K ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net
Re: [MBZ] Premium Gas or Not?
I wonder if the 420SEL or 560SEL will run on less than premium and if so, what is the minimum octane rating that these engines will run? I run a lot of miles /year and I've started to see some deals with both cars. Thanks, Tom Hargrave 256-656-1924 www.kegkits.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Kevin Sent: Thursday, January 19, 2006 2:49 PM To: Mercedes Discussion List Subject: Re: [MBZ] Premium Gas or Not? On Thu, Jan 19, 2006 at 01:31:37PM -0600, Donald Snook wrote: > I have not had a gas Mercedes since 1998 and it was a 1971 (that > originally ran on regular i.e. leaded gas), so I am not clear on the > premium gas requirement on newer gasser MB's. Do I really need to run > premium in my 1990 300SEL? I am pretty sure the simple answer will be > yes. Just wondering if anyone had thoughts on this issue. I've heard Kaleb mention that his 560 was satisfied with less than premium, but am not so sure about the sixes. I'd probably try it with a partial tank - if it's unhappy with it, it'll let you know. K ___ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net
Re: [MBZ] Premium Gas or Not?
On Thu, Jan 19, 2006 at 01:31:37PM -0600, Donald Snook wrote: > I have not had a gas Mercedes since 1998 and it was a 1971 (that > originally ran on regular i.e. leaded gas), so I am not clear on the > premium gas requirement on newer gasser MB's. Do I really need to run > premium in my 1990 300SEL? I am pretty sure the simple answer will be > yes. Just wondering if anyone had thoughts on this issue. I've heard Kaleb mention that his 560 was satisfied with less than premium, but am not so sure about the sixes. I'd probably try it with a partial tank - if it's unhappy with it, it'll let you know. K
Re: [MBZ] Premium Gas or Not?
1992 Olds 98 Regency 121K FOR SALE CHEAP How much for the geezer-mobile? Rick Knoble '85 300 CD
