Unleaded

the pumps i see around here, and the signs

all say regular etc..

regular is NOT called unleaded

2oldman wrote:

fj12ryder wrote:
and it still doesn't really explain what you think is so exceptional.

The word unleaded is meaningless. It has nothing to do with grade of gasoline. Still not following?

Yes, I got it the first time. But it's common around here to label pumps Unleaded, and Premium, so "Unleaded" has come to be recognized as lowest octane rating, very similar to what "Regular" used to mean. Been that way for a long time.

Phil, that's way better than "Senior Moment."

Well .... I waded through some sources to find out what "ISTR" means .... and came up with this:

1. It means "International Society for Third-Sector Research".

AND/OR

2. It means "I Seem To Recall".

AND/OR

3. In my case, it means "I Struggle To Recall".

:)

I had a 1968 Dodge car with a 383 engine that needed leaded gas ISTR to help lubricate the pistons? Whatever it was all about. So then in the 70s the grateful government switched everyone to "unleaded" and my car was screwed.

So ISTR there was a bottle of stuff you could buy that you were supposed to add into the gas tank to make up for this no-lead gas.

As to octane numbers, ISTR ( I do a lot of that these days!) it was the famous flyer Charles Linbergh,(sp?) who disgraced himself in the early 40s by being a big fan of the Germans, and who sort of got the news in Dec 1941, and joined up, and then invented ???? 100 octane gasoline for airplanes???? So he sort of redeemed himself sort of.

2oldman wrote:

MrWizard wrote:
as far as lead in gasoline, i can't remember it was there for protecting valve wear, or there to raise octane rating or both

It was to slow the rate (or maybe temperature) of ignition thereby decreasing engine knock. (pre-ignition). Problem was it was a scourge on our health.

Google probably knows.

It also protected the valves which have since been redesigned with harder surfaces.

MrWizard wrote:
as far as lead in gasoline, i can't remember it was there for protecting valve wear, or there to raise octane rating or both

It was to slow the rate (or maybe temperature) of ignition thereby decreasing engine knock. (pre-ignition). Problem was it was a scourge on our health.

Google probably knows.

it is an adv ploy, to get you to buy one of the higher grades

it's all unleaded, BUT they want to make it seem like the lowest grade/price is unleaded and the other (2) something else

as far as lead in gasoline, i can't remember it was there for protecting valve wear, or there to raise octane rating or both

i think even racing gas and aviation fuel no longer have lead, even though they have higher octane ratings, achieved by other means

Mortimer Brewster wrote:

My theory is that all 3 grades of gas are leaded. I base this on the fact that the Uncola was still a cola. Thus it makes sense that Unleaded gas is still leaded.

You should run for public office. You're a natural politician. :B

fj12ryder wrote:
and it still doesn't really explain what you think is so exceptional.

The word unleaded is meaningless. It has nothing to do with grade of gasoline. Still not following?