Modern fuel ok as it?

[gshiiii]

Newbie owner of a classic.. should I be using a fuel additive with my 1967 1600? 

Also, do I need to be conscious of differences between E10 and E5?

 

TIA

[visionaut]

Nope.

The difference is always 5%..

Just send it..

[Hans]

The less ethanol, the better 

[PhilC]

Always E5 as far as I’m concerned.

[Stevenc22]

Less ethanol the better but no harm running E10. Just might cause things like fuel lines to crack in 5 years instead of 10 years. Just do routine maintenance and you wont have a problem. E10 is just harder on rubber components. All the fuel i have is E10 and i have had no problems. 

 

 

[visionaut]

[tech71]

In Oregon you have no choice in the matter, all  automotive fuel must be blended with at least 10% ethanol.

I dont think any fuel additives are necessary, go with the E5.

Edited July 30, 2023 by tech71

[Dave919]

In my part of NC gas stations have started offered ethanol free (for a premium) which is nice and since not a daily driver a tank lasts me.  But I must admit I did not notice a big change when I switched to it:

Edited July 31, 2023 by Dave919

[Conserv]

1 hour ago, Dave919 said:

… But I must admit I did not notice a bug change when I switched to it:

The “change,” as @Stevenc22 mentioned above, is not in the engine’s power, responsiveness, or smoothness, it’s in the longevity of rubber components within the fuel system. So if you don’t have to replace a new fuel pump within 3 years — as I did not long ago — you are noticing a change!

 

Fewer fuel system issues is your reward!

 

Regards,

 

Steve

 

[Hans]

51 minutes ago, Conserv said:

The “change,” as @Stevenc22 mentioned above, is not in the engine’s power, responsiveness, or smoothness, it’s in the longevity of rubber components within the fuel system. So if you don’t have to replace a new fuel pump within 3 years — as I did not long ago — you are noticing a change!

 

Fewer fuel system issues is your reward!

 

Regards,

 

Steve

 

Also, ethanol fuel doesn't store well.

['76mintgrün'02]

52 minutes ago, Conserv said:

The “change,” as @Stevenc22 mentioned above, is not in the engine’s power, responsiveness, or smoothness,

 

I disagree, because ethanol free contains more energee.  I G00gled to pr0ve it!

 

 

Does ethanol-free gas give more horsepower?

 

Ethanol-free gas can provide better performance and additional horsepower, especially in older vehicles. Ethanol contains 30% less energy than gasoline. 

 

 

[Hans]

OK, but diluted 20:1 for E5, that's miniscule. Or did I miss something?

[AustrianVespaGuy]

33 minutes ago, '76mintgrün'02 said:

I disagree, because ethanol free contains more energee.

Er. . . *SORT* of.  Per unit density that's true, one gram of ethanol contains 30% less energy than one gram of gasoline, but that isn't quite the whole story.  Gasoline burns at one part gas to 14.7 parts oxygen, however ethanol uses only 9 parts oxygen to 1 part ethanol.  So for a given volume of air (or in familiar terms, once cylinder fillings' worth), you can actually burn almost 50% MORE ethanol per combustion than you can gasoline.  This obviously does two things: it actually makes a *little* bit MORE power (70% power * 150% = 105% power), but you're fuel economy takes a bit hit.  So, just like Obi Wan said, it all depends on your point of view.  You indeed have less energy in the tank, and accordingly can't drive as far.  But on the other hand, it'll go a bit faster until empty!

['76mintgrün'02]

I prefer cane sugar to corn syrup as well.

[Mike Self]

12 hours ago, Stevenc22 said:

All the fuel i have is E10 and i have had no problems. 

+ 1.

I've been running that stuff (E10) ever since it was foisted on us, with no mechanical/parts longevity problems so far.  However, looking back on my gas mileage records (yeah, I know--I have 'em back to 1969) since ethanol has been added to the fuel mix, I've noticed my gas mileage has decreased.  I used to get near or over 30 mpg on my 1 barrel '69 on trips, now it's more like 27 or so.

 

But on the other side of the coin, no deteriorated fuel lines, fuel pump diaphragms or disintegrating carb innards.  And my cars will sometimes sit for up to six months, and re-start with no problems...So far.

 

mike