It really saves gas and gives power!

[bright]

Wait I just realized something that might clear things up....
If anyone has ever done factor label method in a chem class then you can confirm this number for me.

Where are all the chemists when the subject switches from synthetic oils to unit conversions? Surely, I am not the only chemist who is on this board? If everyone is so sure about synth I would think it is easy to crank up an equation editor and show a simple conversion

*ahem*

That wasn't directed at you polska* But you got it right.

You did a good job. All you have to do is remember the ratio of 1.2/1 Don't monkey with the decimal. You won't remember it, and besides it's built into 1.2/1 (any real number is the quotient of two numbers.)

When it comes time for the GCSE's just remember to flip the ratio so that the corresponding units cancel out.

My teachers did a wretched job of teaching this. It cost me untold hours until I found the technique in a weird place. All you have to do is line them up and keep the party going until you get your final answer with correct units.

Does 39.6 miles per imperial gallon make more sense?

Here you go:

[polskamafia mjl]

Thanks Bright. The first time I took Chem in 10th grade I could not for the life of me grasp this concept. haha A lot has changed since then.

[stone36]

bringing up an old post to ask what I hope is a straightforward question...

If the following points are accurate:

-Lucas oil is a fuel additive/detergent
-Gasoline contains addatives/detergents
-Higher octane (ex. 91 vs. 89 or 88 vs. 85) gasoline contains MORE additives/detergents

Then is using high octane regularly vs. adding lucas to lower octane roughly the same thing? Lucas is about $11 to treat 100 gallons, so a cost of $.11 per treated gallon, what's the difference between that and spending $.11/gallon on higher octane gas. Is there something that lucas has in terms of detergent/additives that high octane gas does not?

[tjts1]

-Higher octane (ex. 91 vs. 89 or 88 vs. 85) gasoline contains MORE additives/detergents

This is not true.

[marginal]

Then is using high octane regularly vs. adding lucas to lower octane roughly the same thing?

It will never be the same thing.
One is an additive containing who knows what, the other one is an octane booster.
Even if they were both additives or octane boosters, there's always a difference between two different brands, or even two different types from the same brand.