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' 91 350sel, '12 s350, '18 144 sprinter, '08 sl550
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328 Posts
Discussion Starter #1
all the 560sel s i ve seen have premium on the clusters.....

my 1990 doesnt, nor on the gas door or gas cap area.

anyone else ?

thanks !
 

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'88 560 SEL
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35 Posts
regular

I've been using 87 regular in my '88 560 SEL. No problems. I've used 89 and 91/92 and no difference. I'm in NJ too, so our gas choices are alike. I know that the cluster states, Premium Unleaded Fuel Only. The comp. ratio 9.0:1 and initial timing, tell me otherwise.
I've considered removing the ignition timing resistor which will raise my initial timing and then I'll be using premium only.
 

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1986 420SEL/1995 E300D/4 BMW’s/2 Vanagon’s
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1,026 Posts
Premium.
 

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2012 CL550 4MATIC Coupe
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9,992 Posts

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Registered
' 91 350sel, '12 s350, '18 144 sprinter, '08 sl550
Joined
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328 Posts
Discussion Starter #6
guess my cluster s been replaced at some point.......

every one i see for sale has premium only on gas gauge........
 
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