I accidently put 89 octane in my S500 last week. The mechanic at the dealer said not to worry about it because of the anti-knock sensor. Just don't do it to often.

Well, I can tell you the car has never run worse! Sputtering, uneven idle, etc. I will never make that mistake again. Now my '84 380SL uses 87 and it likes it, but it was built when 87 was the only option. My feeling is if it says premium unleaded only then that's what you should use!

Sorry about the similes, they were just too funny to resist!

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Old age and treachery will allways overcome youth and skill!

1993 S500
1984 380SL

Honestly, i think if you own a mercedes. then the little bit extra it cost to put in prememium would be nothing compared to the reparing cost that the average owner spends a week.

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'83 300 CDT
'82 300 CDT- flooded and locked up, looking for new engine
'81 380 SL - Sold
'86 300 E - small probs.. 60k miles.. great condition overall

I'm glad you mentioned them. Do you use BG's other products, too? I've heard mechanics talking about them positively (and not when trying to sell a flush to a customer), so I have been thinking of trying them.

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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I really don't use other BG products...some require special tools and hoses to work..

i don't want to put any additives in my transmission or my engine... changing those fluids regularly takes care of that..

i am just a believer in BG44k... it has never corrected a problem....but then again i have never had a problem...

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

when one looks at the additional cost of premium vs regular..its not all that much...10g premium vs 10g reg is only about a $2-3 total difference.

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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

Reiterating my suspicion that gas prices will fall quite low by Election Day:

Yesterday I saw that ALL gas prices were below $3.00 in Virginia (Centreville).

I was also shocked to see that prices on a section of Georgia Avenue in Silver Spring, Maryland were lower than the average price in Virginia -- $3.05 for premium vs. approx. $3.15 for same in VA. (MD prices are usually always higher than VA.)

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2008 E350 4matic / Black/Anthracite

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Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black

I like to save money just like like anyone else but there is cheap and stupid cheap. Stupid cheap is risking a major repair bill over a few cents difference in fuel prices. When it comes to the reccomended fluids for my vehicles I don't second guess the engineers that created the car. I always run reccomended fluids in my cars including the expensive Mercedes fluids. The small savings is really not worth the risk. I always find it amusing the risks people are willing to take with their vehicles for a few dollars saved.

My 140 is a complex car and actually uses part of the A/C system to cool the fuel before it reaches the injectors. If fuel was $1.00 or more a gallon for premium I still would not have any problems using it. I would rather spend $100 on fuel than $100 worth of abuse and damage to my car's fuel system.