That sounds most reliable. ^ I don't want to take any chances with me not using the proper amount of 110 and 93 and all this math.

On a side note: evodan I just posted in your NJ evo owners thread.

 

yea bud. just drain it. its your best bet. no need to goof around with with this and that. if you need anything else just ask. im always trying to help.

awesome ill update it now. and welcome

 

^it depends on what octane booster you use, not all octane boosters are a gimmick. I will agree that some are just bs. A little research will yield which ones are effective but I do agree the safest way is to drain the fuel out, add race gas, or just run her easy till she's empty.

 

dont use octane booster just drain the tank.

 

just dont give ur car to your mom never ever againnnnnnnnnnnnnn................................ ..................................

 

Yeah she's not driving it for a while ha

 

Draining the tank would be the best option. Luckily, my mom dont know how to drive stick :P

 

I wouldn't bother draining it. I'd just keep on adding gas everyday after you drive. If you have access to some 100 octane, dump that in. Just have to stay out of boost! Plus side is you'll get pretty good gas mileage

I think your mom is kind of a badass for being able to drive an Evo. I don't know of many women that can, much less a mom!

 

either drain it or turn it on turn the AC on and let her run for all day long.

 

The last thing I would do is add octane booster - that doesn't make much sense and is very risky.

Just add a few gallons of race gas, and you'll be fine. 3 gallons of 110 puts you over 93oct assuming you still have 11 gallons of 89. The higher the percentage of 110 as compared to 89, the higher your resulting octane will be - it's just a linear equation.

 

this should help

 

sell your mom.

 

Laf, you don't need a chart to do basic math, I hope...

 

you havent changed one bit.

 

Problem solved gents! And yeah my mom likes driving my car but I gave her the biggest guilt trip of her life and made her pay for my tank to be filled. And then I made her pay for my food at Wawa.