I bet that you'll be able to. In the press releases, they mention that the 340 hp is with recommended premium fuel. Sounds like it can be driven with regular fuel at a lower power output, just like the 2.5T engine. I wonder what the HP/TQ rating will be on 87?
I know. What does that actually mean?Casually drops: « and engine knocking »![]()
I know. What does that actually mean?
The ECU has a knock sensor. It will try to run the engine with parameters that take advantage of 91 octane gas. When it detects knock, the ECU runs more conservative tuning.
Literally every modern car does this. It's nothing to worry about.
I know that but I am talking about their language. It is written in a vague way, not indicating if it is good or bad to run a lower octane gas...
Well, it doesn't say it voids your warranty so I'd assume it's acceptable. If it was a bad idea Mazda would tell you flat out not to do it.
On the other hand, the higher output motor costs significantly more, so it makes zero sense to blow thousands of dollars to buy it and then try to save a few dollars per fill up.
I saw the same thing and didn't quite understand why they would do that. I suppose, like all their other engine designs that are designed for premium fuel, I would expect this engine can handle regular fuel as well, so this approach is giving them higher hp numbers to market.Surprised the PHEV recommemds premium fuel. Goes against the fuel economy ethos of the hybrid.
The ethos, as it were, is not about saving you money. It is about increasingly stringent CAFE standard.Surprised the PHEV recommemds premium fuel. Goes against the fuel economy ethos of the hybrid.
Don't forget this part:Just for easier reference:
US Pricing ($USD)
Package Starting MSRP CX-90 3.3 Turbo Select $39,595 CX-90 3.3 Turbo Preferred $43,445 CX-90 3.3 Turbo Preferred Plus $45,900 CX-90 3.3 Turbo Premium $48,900 CX-90 3.3 Turbo Premium Plus $52,950 CX-90 PHEV Preferred $47,445 CX-90 PHEV Premium $52,900 CX-90 PHEV Premium Plus $56,950 CX-90 3.3 Turbo S $51,750 CX-90 3.3 Turbo S Premium $56,450 CX-90 3.3 Turbo S Premium Plus $59,950
Canadian Pricing ($CDN)
Package Starting MSRP CX-90 GS $45,900 CX-90 GS-L $49,300 CX-90 GS-L Enhanced Package $51,350 CX-90 GT $55,350 CX-90 PHEV GS $54,900 CX-90 PHEV GS-L $59,950 CX-90 PHEV GT $64,350 CX-90 GT-P $59,300 CX-90 Signature $63,300
Mazda recommends premium fuel to be used in my '22 CX-5 Turbo.
I have been using 87 octane since day1.
(if you check the fuel price difference in CA, you would understand why)
Have not observed anything ill effect yet.
This vehicle will perform best with fuel listed in the table.
Fuel Octane Rating* (Anti-knock index) Regular unleaded fuel 87 [(R M)/2 method] or above (91 RON or above)![]()
Fuel with a rating lower than 87 octane (91 RON) will negatively affect the emission control system performance and could also cause engine knocking and serious engine damage.