10MPG in S+, 991.1S, normal?
#31
Instructor
Thread Starter
Got new tank of gas, Shell V power.
eco mode close to 21MPG.
sport 17-19MPG
s+, 13-15MPG
It might have been bad fuel at last fill up.
I will also take out the spares and re-do the test.
eco mode close to 21MPG.
sport 17-19MPG
s+, 13-15MPG
It might have been bad fuel at last fill up.
I will also take out the spares and re-do the test.
#32
Okay these cars are sensitive
No one yet has àsked how car is optioned. Do you have a sunroof, 18 way seats, N spec tires, oversize battery. Are you over 300 pounds. Anything restricting airflow ? Which Rims do you have ? Have you installed 3rd radiator (in S ± engine runs 10 degrees cooler) ?
Just for kicks try running some lucas fuel treatment.
Just for kicks try running some lucas fuel treatment.
#36
#37
Rennlist Member
14 991S w/powerkit, 7MT, on the drive home today in Alabama in Sport plus, outside temps in the high 90s, city and highway for 20 miles and averaged 20.5 mpg. I did some pretty hard accelerations to finish off the rear tires which are being changed tomorrow. I get 30+ in normal mode in 7th gear/
#38
Rennlist Member
A fill up with fresh good gas on top of bad gas it is still a tank of bad gas. Unless you completely flush the tank and lines you will b
e looking at at least three tanks of gas before you have good gas in total. Maybe not even then. Water in tank will stay on the bottom of the tank. Gas will float on top of water at all times if settled for even a minute. Bad gas is usually because water has gotten into the tanks at the station and not because of old gas.
e looking at at least three tanks of gas before you have good gas in total. Maybe not even then. Water in tank will stay on the bottom of the tank. Gas will float on top of water at all times if settled for even a minute. Bad gas is usually because water has gotten into the tanks at the station and not because of old gas.
Last edited by SilverSFR; 08-29-2024 at 08:51 PM.
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Irfan (08-29-2024)
#39
Rennlist Member
Ever since I have been on the track and I cannot get enough of it, in my case I see very little point to driving a performance car on the street. Hell I got my Acura RDX for that and it is no faster or slower in city traffic.
Backroads only and even then with no runoff area in the curves, how fast can you push it. To me it is like...slow.
Last edited by IXLR8; 08-30-2024 at 01:05 PM. Reason: typo
#40
Instructor
Thread Starter
A fill up with fresh good gas on top of bad gas it is still a tank of bad gas. Unless you completely flush the tank and lines you will b
e looking at at least three tanks of gas before you have good gas in total. Maybe not even then. Water in tank will stay on the bottom of the tank. Gas will float on top of water at all times if settled for even a minute. Bad gas is usually because water has gotten into the tanks at the station and not because of old gas.
e looking at at least three tanks of gas before you have good gas in total. Maybe not even then. Water in tank will stay on the bottom of the tank. Gas will float on top of water at all times if settled for even a minute. Bad gas is usually because water has gotten into the tanks at the station and not because of old gas.
#41
Might as well drive a Toyota Corolla.
#43
Rennlist Member
Toss a bottle of Tectron in it and see if that helps. Might have a few dirty injectors