safe to use lower octane levels?

[Brucelee]

It seems to be safe. I think the pinging would be obvious if it were not so.

I am going to try a tank of mid-grade next go round to see if I notice any change.

[lucky_topher]

if the difference in price is $0.10/gal
and you get 20mpg
and you drive 12,000 miles/yr

that means you're using 600 gal of gas a year

if you're saving $0.10 a gal by cheaping out to lower-than-recommended grade, that means you save $60.00 a year, or $5.00 a month

not worth it...

even if the difference is $0.20/gal, you're still only saving $10/month...

one less lapdance every other month and you can still put in the good stuff

And the engine could detonate!

[Brucelee]

one less lapdance every other month and you can still put in the good stuff

You ask too much!

[Jaxonalden]

I burn the good stuff and still have enough money for the "workin'" girls

Lucky, where you gettin' lap dances for $10? Or are they bargin basement girls?

[insite]

i read a study awhile back that showed w/ cars like ours, you COULD switch to lower octane fuel, but you'd do so at reduced fuel economy. the study said it was actually more economical to use the super unleaded. i'll try to find the study.

[Benny986]

If I were on a deserted road, and there was only 1 gas station within the next hundred miles, and I was nearly out of gas, and they had no 91+, then yeah, I'd get whatever they had.

and then, I would hope that it was cold out, and I would drive the car really softly. the car can retard timing on its own, but only so much.

as soon as possible, I would get the highest octane, and still not drive hard. I would then get an octane booster, then drive normal again.

for example, I have a chip, with a 100oct program, and lets say I love the 100oct feel, but not the 100oct price. so i put in 91, but leave it on the 100oct program, well, if I try to drive the car hard, the car will retard, it will pull timing, be slower, and if I'm lucky, it will be within the threshold of pullability. if not, then it will detonate and detonate badly. I will probably need engine work afterwards. But then again, it was my fault, cause I was an idiot.

so if you are going to be driving in the winter, and you are going to drive the car easily, and short shift at 3K, feel free to run 87, it shouldn't do anything bad to your car (YMMV, literally).

But then again, you bought a Porsche, not a commuter.

[smagerstein]

Hi,


We have a gas station chain called OMV (in Slovenia), cheap gas is 95 octain and 100 octain is premium. It cost 2 cents more (1.2% more than regular gas) so this is all I use now.

Since Ive been using only this the car feels a bit..peppier....?? but not so noticable.

Fuel milage seems the same. I get about 450 k (280-290 miles) per fill, which is poor I think. But who cares, its a porsche.

Steven.

[Perfectlap]

^ Smagerstein how much (in dollars) does it cost to fill up your tank?
I think I'm moving with my Boxster to Venezuela, cheap gas and beautiful women..win win.



My car is a virgin to 87 and 91 octane.

I once put a few gallons of some weird brand that was rated 92?? One of those weird Russian brands I think.

93 is 4.22 now....That's gotta be the fastest 30 cent jump I've ever seen.

I'm sticking to 93 and just driving slower. Much slower.
Put the top down, turn up the music and keep the RPMs low.
Welcome to the golden age of the oil industry.