Which gas is better?
#1
Which gas is better?
Greetings all, I have a 2013 RDX. I live in the southeast of U.S. where they put ethanol in most gas. Is it better to buy the Acura recommended 90 or higher octane with ethanol in it or go with the lower 87 octane that has no ethanol in it? I've always heard better to have no ethanol as the engine will perform better, however, Acura recommends the high octane gas.
#2
mrgold35
Do you know if mid-grade is free of ethanol? That would seem to be the lesser of two evils of lower octane 100% gas compared to higher octane with 10% ethanol+mpg hit.
#5
2021 RDX A SPEC
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justnspace (09-28-2015)
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So running the mid would still result in an percentage of cornahol, and my maths say it would be roughly 50% of what would be present in the high oc.
I'm not sure my inputs helped anything...
EDIT: except to say that running mid grade might be the best of both worlds... or the worst... Not sure.
#13
Team Owner
#14
Team Owner
Don't the pumps do in situ mixing of the high and low octane fuels to get midgrade?
So running the mid would still result in an percentage of cornahol, and my maths say it would be roughly 50% of what would be present in the high oc.
I'm not sure my inputs helped anything...
EDIT: except to say that running mid grade might be the best of both worlds... or the worst... Not sure.
So running the mid would still result in an percentage of cornahol, and my maths say it would be roughly 50% of what would be present in the high oc.
I'm not sure my inputs helped anything...
EDIT: except to say that running mid grade might be the best of both worlds... or the worst... Not sure.
Here, regular (87) has 10% ethanol
Premium (91) has 0% ethanol
Mid grade (89) is just a 50/50 mix of the above, and has 5% ethanol.
I believe the 94 we have here has 10% ethanol, also.
#16
Some regions have also been doing E15...
#17
Non ethanol recently became readily available around here, 91 octane only. I use it in both Acuras and my Vintage rides. More expensive, supposedly better for seals, gaskets, etc. in the old cars, small engines, etc.
#18
I use super premium 91 Octane containing zero ethanol. It is about 10% more expensive than regular gas but also gives me better mileage and is better for my engine health and performance so the price difference is negligible. I've been getting a range of 600 - 700 km on one tank of fuel. Varies depending on how long a stretch I go with less stop and go traffic and how fast I'm going. Also, I've been taking it easy on the gas pedal until I break in the engine.
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