What are the danger .... 87 Oct in the '11-12 370Z
 

Wife and I are both retired, and have been (long distance) motorcycle touring since '01. We are considering doing the same thing in a 370Z roadster.

What are the repercussions of using regular fuel in the '11 -'12 370Z Roadster. on a regular bases at various altitudes across the country....???


Thank you for any info......!!!! :tiphat:

Often times using regular fuel results in degraded fuel economy, so sticking with premium can actually be cheaper.

Possible undesirable outcomes include:

1. Detonation under load, which could damage the motor.

2. Reduced power, if the ECU detects pinging and retards spark in order to save the motor.

Not advised overall.

Somewhat less of an issue in altitudes well above sea level (e.g., Wyoming), but again, not advised overall. Use at least 91 AKI.

There is only a 20-30c/gal difference between regular and premium. You're willing to risk damage to your $40k sports car over $5/fill up?

Pretty much everything has been stated, but the motor will save itself with retarded timing and decreased performance. Overall, not worth it.

I agree with all of the warnings above.

Also, a few years ago, I thought I'd try this in my '00 Celica GTS.

I did two different experiments and they both showed the same results. I dropped to mid-grade for one experiment and to regular for the other. The mileage dropped so drastically that it was costing me the same or more as using Premium.

Most important on the warnings is the fact that it can actually damage the engine. High compression engines need hi octane fuel. Don't skimp to save a few pennies.

what about running a regular/mmt/toluene mix you can buy the chemicals to make your own 97octane for the price of premium gas.

Run premium gasoline- It's better all the way around, and you'll have no issues no matter what altitude.

don't cheap out on gas. its a 40k car. and like said above, its $5 per fill up. yes, gas in general is expensive, but premium gas isn't really that much more expensive than regular.

Assuming you put 12,000 a miles a year on the car, and assuming the car gets 20 miles a gallon, thats 600 gallons of fuel per year. Assuming a delta of 20 cents per gallon between regular and premium, that is $120 PER YEAR difference between using premium and regular. You and your wife can just like, eat taco bell instead of going out to dinner like once or twice and that pays for your gas.

its such a small difference if you think about it, which is why it always irks me when i see people putting 87 in their cars that reqiure premium fuel.

Technically the reason why you don't want to put regular instead of premium is because our engine runs high compression. Lower octane fuel will combust sooner and less consistently than high octane fuel. So the fuel will basically combust before its supposed to causing knocking and damaging the engine.

93 only, that 91 some people are forced to use is crap

yea fuck that shit. i think theres like 2-3 cent difference between 91 and 93

on the flipside, if you are worried about not finding 91 or 93 octane gas, don't it's all over the place.

Alhtough, in theory, the car is tuned for 91 AKI, so it should be fine. Also, I've seen no clear evidence of non-California cars putting down more power as a result of access to the slightly higher octane.

93 is preferable, but really 91 should be okay.

just not cali 91 because it's oxygenated or even 93 with 10% ethanol. I only want gasoline, ferosene, toluene, and MMT in my fuel, maybe a little isopropyl alcohol in winter.

Skip lunch and use that fund for your premium gas. Sounds like you're back in highschool
Lol. Stay young. :D

Everything he said.
If $120 more in fuel costs over a year is a deciding factor for someone, they need to re-evaluate their car purchase.

You could look into a Flex Fuel adapter for the car.
E85 is currently around $1.50 cheaper than premium gasoline. Filling up my Ranger costs $15-20 less than a pit stop in the Z. Corn gets a few miles less per gallon than dinosaurs, but it is reported to make more power. Of course, there's also the added expense of modifying the car in the first place.

What the Owner's Manual say?... PREMIUM

Other than that the owner is looking for problems.

I am facing a hard choice as well. The ESSO stations here in Germany all swapped to E10. I can still get premium 93 but what would be the long term issues of using E10 rated at 95 oct?

Under stock set up you only need 91. I'm not sure why other people are saying they run 93. Why would you need anything higher? You only need it if the compression was changed through modification on your engine. Running higher octane would be throwing your money. Please correct me otherwise.

On the east coast it's somewhat rare to find stations with 91. We usually offer 87, 89, and 93.

Yeah, most gas stations here offer only 93. The only exception to this is Sunoco which offer 87 - 93. I typically goto Sunoco.

i also go to sunoco and they have 91 and 93. i figure theres such a small difference (2-3 cents) i might as well just go 93

I will need to take a second look at the prices but I thought there was more of a 10 cent price difference between 91 and 93. I drive 110mi per day in the Z at least so it adds up. I'm not crying about the prices either. I knew what I was going to get when I bought the car.

i guess it depends where you are. i have a 10 mile commute. and around here the difference is very small. the big gap is 89-91 i think

10 cents x 18 gallons (usual fillup amount) = $1.80

who cares...

This guy's numbers are gonna add up pretty quickly at 110 miles a day. That's a fill up every 3 or 4 days assuming he's staying out of the fun pedal and maximizing his fuel economy. Assuming two fillups a week (which is what my fun pedal usage would require), he'd save $187.20 a year by using 91 vs. 93.
Certainly not a make or break it figure, but if 91 works just fine, why not pocket the savings?

Kenchan is right. I don't get bent out of shape when I stop somewhere else and fill with 93 and spend the extra 1.80. On the flip side, I try not spending more than I have to when possible. :)

I was more so curious to know if the car adjusted further to 93 octane.

if 91 works fine and $187.20 is a big deal, i suppose that is a good option~...

but that could also mean $187.20 less consumed tacos and burgers which would be cheaper considering medical visits and bills. lol :icon17:

are you REALLY saving money by doing this overall? i dont know... i doubt it. people think they're saving nickles and dimes here and there but still in the red often do to worse habits.

Since the car is mapped for 91 than there is no use putting in 93....unless that is the only one offered. Some people just like to waste money I guess.

Every car that uses premium gas is mapped for 91 from the factory bc it is the widely available minimum octane rating

Oh and the difference between 91 and 93 is more like 5 cents.....so even that annual amount gets sliced in half to 93 bucks and change.

:iagree:

kind of like how some people save $20 a year by not becoming a premium member despite spending hours and hours on this site every week :stirthepot:

crystal meth = camaro forums

people in the red here owe it all to hookers / asian massage parlors.

Oh sh*t. I feel called out. :p

:p

if everyone just wants to they can paypal me 10 dollars and i'll make you a custom signature that says "Premium Member" in size 12 Times New Roman :p

:icon14:

This isn't really a good example.
Giving $20 to support the forum would be a good thing to do, but it isn't required. I get all the forum I need for free. It would be like someone paying for pr0n when there's so much of it out there for free. Basically, I'm getting what I need without paying extra just like someone who picks 91 over 93 and saves whatever amount of money a year by not buying something that isn't required. That $100 could be used to buy a foglight or spacers if you're looking for a healthy alternative to tacos. :rofl2:

But as I say, $20 isn't a make or break it number for me and I was actually considering contributing... before I saw this post.

WRONG!!!!

Comparing Apples and Oranges.

Oh, I thought I was already providing more than 20 per yr for my unique posts... :D

Psh your unique posts couldn't get AK a "beef" taco at T Bell :rolleyes:

Disagree. If the OP really does some serious touring, it is likely they might end up at a station in the middle of nowhere on "E" and find 87 only.

I've been there. It sucks. Why my DD is 87* compatible.