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0w20 #5335851 01/29/20 07:48 PM
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wolf_06 Offline OP
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Joined: Jun 2012
Posts: 546
Hi guys,

I am commuting 160 km daily, five days a week, only highway.

Current fill is 0w20 from the dealership, which I believe her in Canada is Petro Canada 0w20 oil.

Is there better oil alternative to squeeze out the max mpg out of my car? I drive conservative for economy.

Thanks!


2018 Mazda 3 GS 2.0 Skyactiv 6AT
Petro Canada Full Syn 0w20 + OEM filter
Re: 0w20 [Re: wolf_06] #5335852 01/29/20 07:52 PM
Joined: Dec 2005
Posts: 13,549
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kschachn Offline
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No. Fuel economy is exactly why 20-grade oils were developed.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: 0w20 [Re: wolf_06] #5335858 01/29/20 07:56 PM
Joined: Mar 2017
Posts: 12,557
PimTac Offline
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Posts: 12,557
You will get better mileage with properly inflated tires and a less heavier foot on the throttle. Is this the Mazda? That 2.0 is very fuel efficient.

It might be the same on yours but on my CX5 with the 2.5 I find that just lifting off the throttle just so slightly maintains speed but increases fuel economy. In my info window to the right of the speedometer I can select a option that displays a instant mpg readout. I don’t know if yours has this but it is a good tool to show what I mean.


What kind of mileage do you get now? Also, winter fuel economy will be lower.


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: 0w20 [Re: wolf_06] #5335894 01/29/20 08:20 PM
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whatnext Offline
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My 2012 mazda3 2.0 skyactive gets 40 mpg highway with 0W20. Like it was mentioned, tire pressure will affect your mileage more than a different oil.

Re: 0w20 [Re: wolf_06] #5335943 01/29/20 08:56 PM
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tundraotto Offline
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Joined: Aug 2019
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0W-16 if you want to go there.....and yes...tire pressures.

Re: 0w20 [Re: wolf_06] #5335948 01/29/20 09:02 PM
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B6_Dolphin Offline
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OP - what is your OCI since most of your mileage is all highway?

Re: 0w20 [Re: wolf_06] #5336020 01/29/20 11:26 PM
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Marco620 Offline
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You could look to a 0w20 that had a lower pour point or a better base stock. Castrol Magnatec 0w20 at -51 is pretty impressive. I think a plug in block heater would serve you more than any special oil. Enjoy your car


15' Civic 1.8 i-vtec 311,000 mi M1 0w30 & LG Biotech, BP CVT Fluid,GUMOUT W/ PEA
Doberman Whisperer!
E pluribus unum.

Re: 0w20 [Re: B6_Dolphin] #5336062 01/30/20 02:02 AM
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JLTD Offline
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Originally Posted by B6_Dolphin
OP - what is your OCI since most of your mileage is all highway?


That was my first thought....OP is a great candidate for extended drains at 3200km / 1800 miles per month.


Lates.
Re: 0w20 [Re: wolf_06] #5336085 01/30/20 04:31 AM
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Villalobos Offline
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OEM Toyota or Honda seem like decent choices as well.


2000 Suburban 250k
2014 MKX 100k
2015 IS250 50k
Re: 0w20 [Re: Villalobos] #5336115 01/30/20 06:20 AM
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Randy_R Offline
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Zepro advanced moly or Mazda 0W-20 if you can get a decent price from the dealer.


2018 Mazda CX-5 6600 miles Zepro advanced moly 0W-20 Mazda filter
08 Saturn VUE AWD 3.5 V6 65,000 miles Schaeffer 9000 5W30 Wix 51522XP
65 Pontiac Tempest 355 Chevy Schaeffer Racing 10W30 K&N
Re: 0w20 [Re: Marco620] #5336127 01/30/20 06:34 AM
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WobblyElvis Offline
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Originally Posted by Marco620
I think a plug in block heater would serve you more than any special oil. Enjoy your car


+ 1

Re: 0w20 [Re: wolf_06] #5336217 01/30/20 08:39 AM
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Posts: 14,388
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ARCOgraphite Offline
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NO on the oil. >>> Tires aired up, limited warmup, slow roll up to thru lights by timing traffic, engine off at lights, no idling. Moderate acceleration up to O.D. speed (~45mph)
_____________

Did the manufacturer's ever fix Auto transmissions so they don't unlock torque converters when you lift the throttle?

That drove me nuts when I try for max F.E. - which involves running at high vacuum low ( or the correct) rpm. That mean continuously lifting the throttle to make sure you just crack the TB.

Its why I'm back to a stick.

Last edited by ARCOgraphite; 01/30/20 08:43 AM.

2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter
Re: 0w20 [Re: wolf_06] #5336224 01/30/20 08:52 AM
Joined: May 2010
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spasm3 Online Happy
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Slight gains with open( glasspack) exhaust. Since it's all
highway you should investigate larger diameter tires that will fit( not wheels).

Not a lot more you can do to squeeze mileage out, maybe a tune if someone near you does that.


13 elantra 81k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 17000 miles synpwr 5w30
Re: 0w20 [Re: wolf_06] #5336264 01/30/20 09:25 AM
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Bryanccfshr Offline
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Only other thing would be to shed some weight. Carrying anything in the vehicle you don’t need, take it out. Anyone use that back seat? Take it out.


2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
Re: 0w20 [Re: wolf_06] #5336589 01/30/20 04:34 PM
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PandaBear Offline
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Probably not better oil for mpg other than some barely measurable value. You might be able to get better mpg if you block part of your radiator / grill to improve aerodynamics in the winter.


"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
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