Topic: Noto's first car purchase

[HeliDriver]

only exists above 4,000rpm, which I rarely venture into.

So sad... 

And higher octane doesn't really give you a power boost anyways.

I'm happy that you're happy with the car, seem like a good fit. 

It does if the manufacturer has tuned for it, and in this case Mazda has.

[Triple Bob]

only exists above 4,000rpm, which I rarely venture into.

So sad... 

And higher octane doesn't really give you a power boost anyways.

I'm happy that you're happy with the car, seem like a good fit. 

It does if the manufacturer has tuned for it, and in this case Mazda has.

Interesting, good to know.

[JohnnyMac]

Considering your only complaint is the range I think you did very well.  I tend to think that you are likely underestimating the highway range plus like others have said once you break in the engine you'll likely see better mileage.

Does make me wonder which vehicle sold right now would have the longest range?  It used to be the VW TDI's but now I'm thinking hybrid of some sort likely is king now.

[HeliDriver]

Yeah, these are the numbers according to Mazda:

“The new engine is a 2.5-litre Skyactiv-G turbocharged inline four-cylinder that delivers 227 horsepower and 310 lb.-ft. of torque using regular 87-octane fuel. Those numbers jump to 250 hp and 320 lb.-ft. of torque with premium 93-octane fuel.”

https://www.theglobeandmail.com/amp/drive/reviews/article-the-mazda3-turbo-brings-impressive-power-and-safety-features-to-an/

I’d say there’s a fair difference between 87 and 93 octane there. But it looks like NoTo is using 91 octane, so probably not a huge difference between 91 and 93. Would be interesting to see the numbers, though. I doubt I’d go out of my way to look for 93 if it was my car too.

[tpl]

My Volvo is very blunt about 91 minimum but like a few other euro cars it admits that the engine control computer will eke out a bit more go on 93.   The only 93 in Guelph is Petrocanada now and Costco's 91 is a lot cheaper.   There used to be a station on highway 24 west of Guelph that sold all kinds of things including 93 , and two different levels of biofuel for gas engines and biodiesel  but I think it is just a regular gas station now.

[Triple Bob]

Considering your only complaint is the range I think you did very well.  I tend to think that you are likely underestimating the highway range plus like others have said once you break in the engine you'll likely see better mileage.

Does make me wonder which vehicle sold right now would have the longest range?  It used to be the VW TDI's but now I'm thinking hybrid of some sort likely is king now.

I used to get 1,000km from the 55L tank in the Golf TDi, wonderful car, if not also an evil polluter. 

[Noto]

Dyno provided by Mazda is below - notice that the power and torque figures are identical below 4,000rpm, but then it drops off sharply on 87 versus 93.  Lower octane at higher elevations and/or lower temperatures acts as if it has highER octane (albeit not necessarily 87 becomes 91 or 93).  My thought is that 91 in our winters without ethanol may act close enough to 93 that our may extract max power out of that engine any way...

[z973]

as you all know i have a 2019 AWD sedan last year i calculated all the fill ups and my average was 6.6
this year because of Covid 19 i am driving it more city and short trips and so far its 7.4
as for the range the most i got is 720 and the least one around 500
comparing it to my 2015 GT the 4 year average was 6.4
by the way this is my 5th Mazda 3 in a row and over the years i test drove a Rav 4,Subaru Forester,Hyundai Kona ,Honda civic
and at the end bought back a Mazda 3 !

[dirtyjeffer]

Costco 91 is fine...the quality of fuel is likely more important than the slight difference in octane (plus Costco gas is usually quite a bit cheaper)...Costco gas is Top Tier fuel and their 91 is ethanol free...i think Canadian Tire's Premium is the same (but Costco is likely cheaper), but if you're in a jam, CT will work too.

[JayStack]

Planning a trip to run your Mazda 3 against the Hoonicorn?  The couple of ponies you'll miss out on by having 91 vs 93 won't be able to be felt, not in the slightest, and won't harm your engine.  I'd run premium, but the diff between 91 and 93 isn't a thing for that engine.

[quadzilla]

as you all know i have a 2019 AWD sedan...the most i got is 720

Considering a 48L tank that would be 6.66 L/100 if you ran it dry or 5.97 if you left 5L in the tank. Impressive.

[EV Dan]

This looks fake IMO. Take the same engine, same fuel and everything and run the car twice on the same dyno and you will have tow different lines for TQ and two different ones for power. Is Mazda suggesting they changed fuel and got the lines to match in the beginning of the RPM range?     I'd like to see some actual dyno runs for 87 and 91 and I expect to see a better (for 91 grade) picture.

[Triple Bob]

This looks fake IMO. Take the same engine, same fuel and everything and run the car twice on the same dyno and you will have tow different lines for TQ and two different ones for power. Is Mazda suggesting they changed fuel and got the lines to match in the beginning of the RPM range?     I'd like to see some actual dyno runs for 87 and 91 and I expect to see a better (for 91 grade) picture.

It's probably the average of a bunch of runs.

[rrocket]

only exists above 4,000rpm, which I rarely venture into.

So sad... 

And higher octane doesn't really give you a power boost anyways.

I'm happy that you're happy with the car, seem like a good fit. 

It does if the manufacturer has tuned for it, and in this case Mazda has.

This.

[EV Dan]

This looks fake IMO. Take the same engine, same fuel and everything and run the car twice on the same dyno and you will have tow different lines for TQ and two different ones for power. Is Mazda suggesting they changed fuel and got the lines to match in the beginning of the RPM range?     I'd like to see some actual dyno runs for 87 and 91 and I expect to see a better (for 91 grade) picture.

It's probably the average of a bunch of runs.

Yeah, I think so. But still, higher octane fuel should result in at least a better TQ curve under 4,000 rpm.

[rrocket]

This looks fake IMO. Take the same engine, same fuel and everything and run the car twice on the same dyno and you will have tow different lines for TQ and two different ones for power. Is Mazda suggesting they changed fuel and got the lines to match in the beginning of the RPM range?     I'd like to see some actual dyno runs for 87 and 91 and I expect to see a better (for 91 grade) picture.

It's probably the average of a bunch of runs.

Yeah, I think so. But still, higher octane fuel should result in at least a better TQ curve under 4,000 rpm.

That all depends on a lot of stuff...

[Scaerio]

Costco 91 is fine...the quality of fuel is likely more important than the slight difference in octane (plus Costco gas is usually quite a bit cheaper)...Costco gas is Top Tier fuel and their 91 is ethanol free...i think Canadian Tire's Premium is the same (but Costco is likely cheaper), but if you're in a jam, CT will work too.

CT 91 is ethanol-free.  If you purchase it using a the black CT MasterCard, you get $0.07 back per litre, which probably eliminates the Costco price advantage.

[dirtyjeffer]

Costco 91 is fine...the quality of fuel is likely more important than the slight difference in octane (plus Costco gas is usually quite a bit cheaper)...Costco gas is Top Tier fuel and their 91 is ethanol free...i think Canadian Tire's Premium is the same (but Costco is likely cheaper), but if you're in a jam, CT will work too.

CT 91 is ethanol-free.  If you purchase it using a the black CT MasterCard, you get $0.07 back per litre, which probably eliminates the Costco price advantage.

yes, CT gas is ethanol free but it's not "Top Tier" rated so it doesn't have quite as many additives as some of the others...regarding pricing, it's hit miss around here...sometimes that 7 cent discount may make it comparable, but i've seen a gap of 20 cents/liter before...it really depends on the station and the time...if you have a Costco card and a location nearby that sells gas, i'd just use them...but i'd get CT gas as an alternative (certainly better than the no-name stations).

[rrocket]

Costco 91 is fine...the quality of fuel is likely more important than the slight difference in octane (plus Costco gas is usually quite a bit cheaper)...Costco gas is Top Tier fuel and their 91 is ethanol free...i think Canadian Tire's Premium is the same (but Costco is likely cheaper), but if you're in a jam, CT will work too.

CT 91 is ethanol-free.  If you purchase it using a the black CT MasterCard, you get $0.07 back per litre, which probably eliminates the Costco price advantage.

yes, CT gas is ethanol free but it's not "Top Tier" rated so it doesn't have quite as many additives as some of the others...regarding pricing, it's hit miss around here...sometimes that 7 cent discount may make it comparable, but i've seen a gap of 20 cents/liter before...it really depends on the station and the time...if you have a Costco card and a location nearby that sells gas, i'd just use them...but i'd get CT gas as an alternative (certainly better than the no-name stations).

Honestly don't really think any of this matters.

Have never had a fuel related issue in a car before..even the ones with 400k+ kms I've owned.

Only issue I've ever had was not enough octane with 91 for the Supra.

[Ex-airbalancer]

Need to go to the reserve for gas and weed , all the pot place have buy and get one at 1/2 price 😁