I've tried regular unleaded to plus, or v-power from shell, and sometimes the higher level gas at BP. and the thing is I do see a difference between them, the difference I see with my car is, is that my 7th gen seems to burn the unleaded gas ALOT faster then the higher octane gas, and by alot i mean alot. So Idk if it's worth the extra 10 - 20 cents to get the good gas or just stick to regular shell unleaded.

And I just tried Lucas for the first time, and it seems to add in a couple miles to the gallon. little difference.

Any opinions on that, and do higher octane gases really clean out your car as good as they say it does?

 

87

 

Your engine is tuned on non-premium 87 octane. To deviate from that octane can cause internal damage to the engine.

See your Owner's Manual before "testing" theories on necessary automotive fluids.

 

87 at shell only.

 

there are a few theories and reasons as to why higher octane fuel "may" give you fuel economy.

here's one:

depending on your location, your local gas stations may mix in 10% ethanol into the fuel. higher octane fuels often won't contain any ethanol. anyways, ethanol has lower energy content than gasoline so in theory your fuel economy would drop when using fuel that has ethanol mixed in.

 

No, fuel additives do.

And I use 87 octane.



Here.. read this. http://www.ftc.gov/bcp/edu/pubs/cons...tos/aut12.shtm

 

93

 

Like rob c 87 and shell only.

 

Unless your car has some crazy F/I or NA build. You should only use 87, no point in adding an extra 10-15 cents per gallon for same results.

Use fuel additive if you wanna clean your motor.

 

get v power from shell tecron from chevron you got some perfect vtec gas :D lol jk

 

BP gasoline.

 

87 anywhere because gas is gas.

 

87 chevron

 

87 should be fine theres no need to put 93 octane on d17.....i do 87 on my civic i do 93 on my evo

 

85 here in utah.

 

Damn you guys get 87-93? Lucky. Up here we only get 87-91.

 

yea bro but its not cheap though the 93 is like $4 with some change a gallon :$

 

dams. its under $3 here

 

Damn that's alot. I remember when my bro went to Miami he took a picture of shell's gas price.

Reg=2.82
Plus=3.64
V-Power=3.65

I was like damn.

 

How about fuel system cleaners? Are they necessary?

 

yea, that was a long time ago thats why i use my em for my daily driver it gets filled up with $25 but my evo its close to $40 i bearly take that bitch out hahaha

bro honestly i do it every oil change, and it helps

 

O okay. Yeah I do the same thing. I put one every 4,000 miles and it's only about 7$. I was just wondering if it was necessary. Thanks man.

 

regular.

 

i was wondering the same thing. i have only put one tank full in my car. i used 93 in prelude though

 

87 chevron or 76 and a lil bit of Dos XX