Gas - tanks and octane and tire pressue

[cdccjohnson]

Ok, trying to sort out some of the new experiences with my 2000 V8.

1. When filling the gas tanks, the filling cuts off early. Even after waiting, I can't get the guage to full.

2. How accurate is the guages on these things? When I get down to just below 1/2 tank, I can only put in 12 gallons. Just trying not to run out of gas.

3. What is the proper octane? The manual states 91-93 in the US, but can you run 89 if needed?

Finally, the tag on the door says 29psi front and rear. What do most people run.

Thanks, Chip

[gmendoza]

Ok, trying to sort out some of the new experiences with my 2000 V8.

1.  When filling the gas tanks, the filling cuts off early.  Even after waiting, I can't get the guage to full.

2.  How accurate is the guages on these things?  When I get down to just below 1/2 tank, I can only put in 12 gallons.  Just trying not to run out of gas.

3.  What is the proper octane?  The manual states 91-93 in the US, but can you run 89 if needed?

Finally, the tag on the door says 29psi front and rear.  What do most people run.

Thanks, Chip

<{POST_SNAPBACK}>

1. Since it has two tanks, it takes a while for the tanks to equalize. So if you wait for a few and then continue pumping, you should be able to fill the tanks.

2. I'm not sure

3. I would not run anything lower that 91, especially in a hot day. The ECU can retard timing and reduce boost to prevent detonation but I wouldn't do it. Actually I usually run a mix of about 95 octane on mine just to be safe.

4. My tag has a psi for above 149mph and one for bellow 149mph. I keep mine between both; 28psi I think.