Not sure if the dealer filled with 93.
 

I just purchased my 13' from the dealer and my salesman was completely surprised that it takes premium. I'm hoping that the maintenance guys filled the tank with premium. I didn't think to ask then, but guess I should give them a call, but in any case I'm already at a half tank (road trip)...

Just in case it wasn't, should I burn off whatever is left and then refill, or just refill with premium now at half full? Not sure if the mixture would matter.

Thanks, and what is the possible repercussion if they did fill it up with low grade?

Thanks

The ECU will pull timing if it senses knock and you'll be down on power until you can get decent gas in it. Just run it down and then refill as normal.

If they did, it's really not a big deal. Just drive the car easy until your next fill up.

Even if you push it, the ecu will detect any knock and compensate for it.

Yeah what he said... lol

I win. :D

lol I had most of it typed, then a damn customer came in and I had to stop :mad0260:

This would a great job if it weren't for the damned customers!

Exactly!!!

Since it's a new car, you shouldn't be driving it too hard anyway. I wouldn't worry about it, you'll be fine.


Many dealerships have gas pumps in the lot that they use to fill up new car deliveries, rental cars, customer cars, etc. 99% it's 87 grade, unless they actually drove the car to a gas station and have a receipt for premium.


I used to work at a Nissan dealer back in 09' when the GTR first came out. We were the first dealer in New England to have one. Guess what we used to fill it up? 87, yup.

It's Totalled....

Thanks for the replies. Sorry I didn't specify that it's used not new. Haven't felt any knocks yet but i'll just wait until it empties out.

It'll be fine, the ECU will adjust.
The car's supposed to take 94. If you're in the US, that's not premium, that's a step above it.

Question: If you have only access to regular 87 octane and the next stop for premium gas is 300 miles away, will you freak out? Will you write off your engine?

Regular gas is only "bad" if you have an engine and ECU incapable of adjusting to the octane difference. Once in a while is okay.

-alex

YOU'RE FIRED ..... !!!!!!!!!!

YOU TOO ......Abenaki .....!!!!!!

Yo, we have two job openings ...... :D

OP, your car will be just fine till you get some hi-test gas ..... :)


humfrz

I think what OP is implying is that if the salesman didn't even know it took premium then chances are as a used car its seen more than one fill up with regular fuel... Even then its hard to say whether the previous owner did the same, I doubt the engine would be too happy about being fed 87 its whole life...

So by your reasoning, all used FRS/BRZ would have a chance of the previous owner(s) putting in regular gas? And that it's bad?

Yes.

Whole life? Yeah right.

And if a used car took more than one fill up's worth of gas while sitting on a used car lot, then there's bigger issues than just "bad gas".

My point is, regular 87 octane is not the evil entity people make it out to be. The ECU will adjust timing to compensate for the extra knock. No harm done unless you attempted to set a new lap record at the Nurburgring with 87 octane during your test drive.

-alex

87 octane kicked my dog and sold tainted candy to my children.

...that's not correct. P. 419 of the manual:
TLDR: If you're in the US, the car prefers 93, but 91 is ok. Not sure where the hell you got 94 from.

none of us know the circumstance of how the car was driven before, what gas was used or whatever, so could it have been filled with 87 it's whole life? you never know.
Also in the post I replied to you said "once in a while its ok" [to use 87] which grammatically implies that you shouldn't use it all the time, and now you are saying that 87 is fine to use. So since you're all fired up anyway you want to say which one is right?

In Canada only one station carries 93 (just started to this year) and so for years all cars that needed anything more than 91 are told to use petro 94 in Canada

UMMMMM I can get 93 at many stations around here but have to go looking for 94.
I run 91 most of the time anyway.

Benefit #1 of being the boss (well one of them):


"Just wait a minute I will be with you when I am done this"

To answer your question: both. I never said it's okay to use 87 all the time.

You could use 87 all the time, but you risk damaging your engine in the long run.

The ECU can compensate for short periods of lower octane. There would be no harm done unless you run with 87 for extended periods of time and/or put the engine under load/temps/stresses where detonation (ping) is an issue even with normal 91 octane gas.

My point is, just because you've put 87 octane in the car doesn't mean you are harming the engine. Much like putting on a spare tire after getting a flat, you can drive around quite a bit with 87 octane as long as you use some care in driving the car.

People flip out when a dealership puts in the wrong gas. Yes, they were probably wrong, but if you run a business at some point you would find ways of reducing costs without negatively impacting overall sales. This is one of those ways, especially if it's a low-end car that takes premium gas that may see a lot of test drives.

-alex

ok we're on the same page in regards to 87 being ok to use once in a while but not for use over the life time. All I'm saying though is that from what I read OP is a little distressed over 87 being in the car, if we all said "don't worry man its all good if they put 87 in your car" then I'm sure new people reading would be under the impression that its ok to put 87 in all the time :P that's all i'm saying, its just a change in perspective I was bringing up