REDSS98

Can I run LEADED 114 fuel in my SS .

BriancWS6

iTrader: (18)

Leaded fuel will foul your O2s in a HURRY. Also, there is absolutely no need to run anything besides 93 in your car. You'll waste money and go slower.

black01_WS6

iTrader: (13)

simple answer is no. not a good thing to do.

bww3588

iTrader: (49)

if you foul your O2's you will start running rich which will in turn cause you to go slower. i agree with BriancWS6 on this. but where i disagree is that even unleded 110 or whatever will not do any good in a stock motor. im going from experience, i picked up 2 tenths and 2 MPH at the track on ~ a 90* day. on a cooler evening before i ran a 13.3 @ 109.3 and when i went to the track with unleded 110 in it on ~90* day i ran a 13.1 @ 110.70. this was on the stock LS1 intake and bald 245's on 16's.

02NBMWS6

iTrader: (22)

then your car must have been knocking and you mustve 60'd better.

bww3588

iTrader: (49)

nope. 60' stayed consitant at 2.2-2.1....idk, i have a 98 so im looking at which knock sensors i have, i may have early ones that need upgraded.....