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Is premium better for Skyactiv? #5338156 02/01/20 12:11 PM
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wolf_06 Offline OP
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I know this subject has probably been debated many times on here, but there is still many diffrent opinions on this.

I drive a 2018 Mazda 3 with the 2.0 Skyactiv engine, automatic 6 speed.

Is there any advantange using premium for maybe a better fuel economy, maybe a bit more power? Or to keep the direct injection system working properly for a long time.

I did not find any official documentation from Mazda Canada other than my manual. Theu just mention regular OR higher. But why OR HIGHER? They dont say if its better or not, its confusing.

Please share you opinions.

Thanks!


2018 Mazda 3 GS 2.0 Skyactiv 6AT
Petro Canada Full Syn 0w20 + OEM filter
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338162 02/01/20 12:18 PM
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JLTD Offline
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Try a couple tanks and see?


Lates.
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338169 02/01/20 12:25 PM
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simple_gifts Offline
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premium is .50/gal more than regular in my area; if fuel economy is defined as cost / mile driven then no way are you going to get ROI

Last edited by simple_gifts; 02/01/20 12:25 PM.

2004 Prius; 126K; ALM
2007 Yaris 103K ATM
2006 B2300;137K;ALM


Was driving an ox cart; Now on the USS Enterprise
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338181 02/01/20 12:36 PM
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tundraotto Offline
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You will gain power and fuel economy - and of course the possible higher level of detergents. In my experience the mpg gain does not quite amount to the price difference, but as said there are power and detergent benefits.

Re: Is premium better for Skyactiv? [Re: wolf_06] #5338202 02/01/20 01:06 PM
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jayjr1105 Offline
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Use what the car calls for and don't spend a penny more. There have been cases that higher octane than required will give you worse mpg. I have a 2.0L skyactiv btw and it runs well on regular 87 octane (what it's called for).

Last edited by jayjr1105; 02/01/20 01:07 PM.

2013 Mazda 3 - PP 0w20
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Re: Is premium better for Skyactiv? [Re: wolf_06] #5338218 02/01/20 01:41 PM
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E150GT Offline
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I don't like it but I use it. I don't get better power or fuel economy but I get considerable less pinging. On 87 I can press the case peddle and it sounds like chains clanking from the engine. With 93 that goes away


1984 Mercedes-Benz 300SD - 100k
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Re: Is premium better for Skyactiv? [Re: wolf_06] #5338282 02/01/20 03:28 PM
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atikovi Offline
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One of the benefits of DI is a lower octane requirement. You're wasting your money on premium.

Re: Is premium better for Skyactiv? [Re: wolf_06] #5338289 02/01/20 03:48 PM
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Skippy722 Offline
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Owners manual states “87 [(RM)/2 method] or above.” Try a couple of tanks and see if it likes premium.


2016 Chrysler 300S v6
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338296 02/01/20 04:00 PM
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wdn Online Content
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I think it is a case of the car will run on regular unleaded but it is a sly way for them to say you really ought to be using premium gasoline. Once the sale is made it doesn’t cost Mazda anything.

Re: Is premium better for Skyactiv? [Re: E150GT] #5338300 02/01/20 04:08 PM
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wolf_06 Offline OP
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Originally Posted by E150GT
I don't like it but I use it. I don't get better power or fuel economy but I get considerable less pinging. On 87 I can press the case peddle and it sounds like chains clanking from the engine. With 93 that goes away


with your mazda 6 ?


2018 Mazda 3 GS 2.0 Skyactiv 6AT
Petro Canada Full Syn 0w20 + OEM filter
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338303 02/01/20 04:12 PM
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Kira Offline
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Regular used in 2 Skyactiv 1998cc (2.0l) daily drivers with good results.

If I knew I was going to be driving rolling hills with any pep at all I'd dose the tank with a little 'spark advance' fuel.

Of course I have no idea what goes on in the hot zone.

Re: Is premium better for Skyactiv? [Re: wolf_06] #5338337 02/01/20 04:56 PM
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BAJA_05 Offline
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What does the owners manual specifically say regarding minimum octane rating to run. Go with that and call it a day.


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2008 Acura TL 3.2L PPPP 0W20 & FU (114K)
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Re: Is premium better for Skyactiv? [Re: tundraotto] #5338341 02/01/20 05:02 PM
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Rolla07 Offline
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Originally Posted by tundraotto
You will gain power and fuel economy - and of course the possible higher level of detergents. In my experience the mpg gain does not quite amount to the price difference, but as said there are power and detergent benefits.


This is not true. Higher compression engines yes but itd be specified in the user manual. If it states 87, its 99% likely to be a waste. Ive never noticed any difference on any of my vehicles. Same mpg and power.

I dont know if i buy intothe detergent benefits..regular having the minimum standards, ive never had any fuel system issues, as most others, so hard to prove those detergents change anything.


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967
2015 Toyota Venza Parisian Blue Pearl 25k miles
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Re: Is premium better for Skyactiv? [Re: wolf_06] #5338363 02/01/20 05:41 PM
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Ws6 Online Content
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Not without the turbo, in my opinion. I ran 87 in mine. What finally killed the car was the HPFP and the FPR going out at the same time. I blame that on gas quality, as it happened 5min after a fill-up, and they both died at that moment. Very odd. Nothing to do with octane, though. I tried higher octanes and got no difference in power or mpg.


2019 CX5 Grand Touring Reserve
Re: Is premium better for Skyactiv? [Re: wolf_06] #5338716 02/02/20 05:13 AM
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madRiver Offline
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Better for oil companies.

If Premium is recommended possibly.

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