A Brain Fart...

MZ DAIZY · 03-12-2021, 02:23 PM

Quote:

Originally Posted by crazy4oldcars

I was wondering about octane booster, too.
Assuming the 14 gallons gave you a full 19 gallon tank, and the prior tank was 93 octane, the math puts you just under 91 octane for the tank full. Just go easy on her, and she'll be fine.

Kirk B.

This has me thinking... I have no problem locally getting 93 octane, but let’s say I’m out of town and all they have is 91 octane? Never really thought about it since I rarely travel far with her.

Rusty · 03-12-2021, 02:30 PM

Quote:

Originally Posted by MZ DAIZY

This has me thinking... I have no problem locally getting 93 octane, but let’s say I’m out of town and all they have is 91 octane? Never really thought about it since I rarely travel far with her.

No problem. It won't make the same power. Timing will be pulled some.

SouthArk370Z · 03-12-2021, 04:53 PM

Quote:

Originally Posted by MZ DAIZY

This has me thinking... I have no problem locally getting 93 octane, but let’s say I’m out of town and all they have is 91 octane? Never really thought about it since I rarely travel far with her.

The difference between 93 and 91 isn't all that much for a DD. The ECM will pull some timing and you will lose a little power but you shouldn't do any damage as long as you drive carefully. Keep your toenails out of the radiator until you can get the octane back up.

Personally, I'd use octane booster only if I got some very low octane (say >= 4 ratings less). Keep in mind that the octane boost printed on the bottle is usually in "points" not octane numbers - it's gonna take a lot of booster to make much of a difference.

BettyZ · 03-12-2021, 05:06 PM

Quote:

Originally Posted by SouthArk370Z

The difference between 93 and 91 isn't all that much for a DD. The ECM will pull some timing and you will lose a little power but you shouldn't do any damage as long as you drive carefully. Keep your toenails out of the radiator until you can get the octane back up.

Personally, I'd use octane booster only if I got some very low octane (say >= 4 ratings less). Keep in mind that the octane boost printed on the bottle is usually in "points" not octane numbers - it's gonna take a lot of booster to make much of a difference.

The STP stuff has an insane # of points and one bottle will kick a full tank up from 91 to 93. But it ain't cheap

SouthArk370Z · 03-12-2021, 05:11 PM

Quote:

Originally Posted by BettyZ

The STP stuff has an insane # of points and one bottle will kick a full tank up from 91 to 93. But it ain't cheap

I didn't know there was anything that potent out there for the street. Thanks for the update.

redondoaveb · 03-12-2021, 05:40 PM

Quote:

Originally Posted by BettyZ

The STP stuff has an insane # of points and one bottle will kick a full tank up from 91 to 93. But it ain't cheap

Check out Boostane

Rusty · 03-12-2021, 06:55 PM

Back in the day. We used to use tolulene as a octane booster. Worked with my 572 cu in, 14 to 1 Mopar motor.

BettyZ · 03-12-2021, 05:05 PM

Quote:

Originally Posted by MZ DAIZY

This has me thinking... I have no problem locally getting 93 octane, but let’s say I’m out of town and all they have is 91 octane? Never really thought about it since I rarely travel far with her.

I had Seb give me 91 and 93 maps when I was N/A. Probably do the same with FI

03-12-2021, 06:55 PM	#7 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,362 Drives: 2011 Nismo GM 6M Rep Power: 2684438	Back in the day. We used to use tolulene as a octane booster. Worked with my 572 cu in, 14 to 1 Mopar motor. FL 4Motion likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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