NO. If you use lower than the recommended octane in a 1.8T, the ECU will retard the firing sequence, and you will be operating at reduced power and higher emissions.GCOOK67 said:Hello,
I have a 2003 Turbo Beetle and have always been putting Super Unleaded Gasoline in it. Due to the rising costs of gasoline I have recently started putting regular unleaded into it. Is this safe for me to do?
Ive heard this doesnt work because the gases dont mix right. ????roamerr said:The 1.8T was rated for 91 octane. You could always do a blend of 93 and 87 to save a little bit. Basically 8 gallons of 93 and 6 gallons of 87 would do.
Too much hassle I think.... Just use 93 octane..