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#1
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Quick Q: '87 190 2.3 ... Regular or premium?
I am trying to determine which fuel grade for my daughter's '87 190 2.3: Regular or Premium?
Thank you in advance, Haasman
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'03 E320 Wagon-Sold '95 E320 Wagon-Went to Ex '93 190E 2.6-Wrecked '91 300E-Went to Ex '65 911 Coupe (#302580) |
#2
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I run premium because it's recommended by MB.
No fuel-related problems yet, but that may not have anything to do with octane quality. If ever I do have a fuel-related issue, at least it's a parameter I can rule out. Many on this forum used regular (81-85) and have had good results. Higher octane fuels have a higher "flash point" i.e., needs higher temps in order to ignite. So there is less of an issue with problems such as "pre-ignition" or detonation. But if you start hearing pinging under load conditions, then you do need to bump up the octane choice.
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#3
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I have a 190e 2.6 and use mid-grade. Regular octane gas can really affect starting conditions when it's very cold outside. I've found it less problematic with the mid-grade.
I used preimium when I first bought the car, and it didn't run so great. MUCH better with mid-grade. |
#4
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Thanks for the input!
Haasman
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'03 E320 Wagon-Sold '95 E320 Wagon-Went to Ex '93 190E 2.6-Wrecked '91 300E-Went to Ex '65 911 Coupe (#302580) |
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