Topic title says it all.. "What are simple DIYs if you think the SC is burning too much gas than normal?"

I just drove about 35 miles in the city and already lost close to a notch of gas...and plus gas prices are going crazy once again...$3.25 here for super!!

 

3.25 for premium is pretty good actually, thats the price of midgrade here in clearwater and even higher in tampa

 

we be even lucky to get $3.25 for regular.

 

How about seafoam

 

block under gas pedal should work pretty good

 

$3.79/gallon here.. and all I get is 91 octane.

Yea, my mpg sucks on the streets.. but it's pretty efficient on the freeway.

 

$3.96 here for 93 octane, filled up full tank 18.2 gal yesterday for like $73

 

ouch and i thought here in jersey was bad. 3.31 for super

 

I only put $20 in my tank and it keeps me good for a weeks worth of driving. I don't fill up until the line is BELOW the "E" completely.

 

I usually fill up 3/4 tank at most. Might as well save some weight haha.

 

I just installed a SAFC I i got for $80 and tuned the car with a wideband to run a tad bit lean. lets see if I save gas... it runs more responsive and it felt faster too.
Prior to that I also changed the stock mufflers (restrictive) to staright flow ones.

 

I didnt read the thread title carefully before I answered but, as mentioned try seafoaming your engine
check your catalyctic converter if it is clogged
check tire pressure
clean your air filter or do the BFI mod

 

does our car need to be high octane fuel all the time...or can it be switched to regular now and then?

 

I always run premium. I never planned to run regular. Stock compression is I think around ~10.5:1? I dont wanna risk engine failure due to knock. Just do a simple tune up. It should help with your gas mileage and keep off WOT. Keep your car light too. Me, I changed the seats, took out the spare and tools and replaced it with a can of fix a flat.

 

just run the right stuff (premium)... you figure, even if you fill up a bone dry tank (20.5 gallons), the difference almost always is .20 / gallon, so, $4 difference on a COMPLETELY empty tank... When you're already spending $50-$60, the extra $3-$4 is worth it for premium (the car really does run better with it)...

as far as DIY... air filter, air pressure in tires, don't carry too much crap in car, watch your own driving habits, drive with windows down instead of a/c (moreso for around town, on the highway, this doesn't matter as much due to aerodynamics), then... of course, your basic tune up type stuff - oil change, plugs, wires, caps, rotors