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Best synthetic for Mazda Direct Injection? #4035323
03/11/16 09:23 AM
03/11/16 09:23 AM
Joined: Nov 2004
Posts: 75
Orlando, FL
perryg114 Offline OP
perryg114  Offline OP
Joined: Nov 2004
Posts: 75
Orlando, FL
I just bought a new Mazda 3 Skyactive with the direct injected engine. I know that there have been issues with carboned up valves with some DI engines. I have been using M1 in all my stuff with good results but I have noticed some carbon accumulation as a result of burnt oil with the M1. So should I continue to use the group 3 M1 or should I step up to group 4 or 5 oils? Is there a benefit or is it marketing hype? If I do abandon M1, what would be a good alternative that I can preferably get at Walmart? I don't want to get into a discussion about why Mazda sucks or why DI engines are the end of the world. I bought the thing so I have to live with it now.

Thanks

Perry

Last edited by perryg114; 03/11/16 09:24 AM.
Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035325
03/11/16 09:32 AM
03/11/16 09:32 AM
Joined: Nov 2002
Posts: 30,917
NJ
buster Offline
buster  Offline
Joined: Nov 2002
Posts: 30,917
NJ
I'd go with Mobil 1 AFE or EP 0w20. Both have a NOACK volatility of 10% and sulfated ash is around .8%. EP 0w20 is also 70% PAO.

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035332
03/11/16 09:43 AM
03/11/16 09:43 AM
Joined: Aug 2004
Posts: 2,005
5600 feet elevation, Arizona
double vanos Offline
double vanos  Offline
Joined: Aug 2004
Posts: 2,005
5600 feet elevation, Arizona
Have you already torn into the Mazda for a look at the valves? What does Mazda spec for this engine?
FWIW my Ecoboost F150 has 95k miles and still runs like a scalded dog. I've been using Castrol 0w-40 in it for quite some time so I suppose the A3 rated oil has been suiting the engine just fine. Have no idea about my valve deposits other than to say if there are deposits, they haven't slowed my engine down one bit.


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035340
03/11/16 09:50 AM
03/11/16 09:50 AM
Joined: Jul 2002
Posts: 4,541
KY
MCompact Offline
MCompact  Offline
Joined: Jul 2002
Posts: 4,541
KY
I ran M1 5W-30 in my 2007 Mazdaspeed 3 for over 158k miles with no deposit or wear issues at all.


Mine:
2014 M235i
2009 Cooper Clubman
1999 Wrangler Sahara
1995 318ti Club Sport

Wife's:
2015 X1 xDrive28i


Son's
2009 328i

Buy what makes you smile...
Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035351
03/11/16 10:05 AM
03/11/16 10:05 AM
Joined: Nov 2002
Posts: 30,917
NJ
buster Offline
buster  Offline
Joined: Nov 2002
Posts: 30,917
NJ
Mazdas don't appear to have deposit issues with their DI engines.

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035395
03/11/16 10:52 AM
03/11/16 10:52 AM
Joined: Feb 2015
Posts: 1,383
Maple Syrup Land
Stewie Offline
Stewie  Offline
Joined: Feb 2015
Posts: 1,383
Maple Syrup Land
Maybe you got a lemon.

I don't notice my engine running rich.

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035401
03/11/16 10:56 AM
03/11/16 10:56 AM
Joined: Dec 2003
Posts: 9,914
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,914
Florida, Cape Coral
My Mazda cx5 runs just great. I run PP and OEM or Ultra filter with a 6,000 mile OCI. Ed

Last edited by Eddie; 03/11/16 10:58 AM.

CX5 Touring 2.5L :-)
Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035419
03/11/16 11:21 AM
03/11/16 11:21 AM
Joined: Oct 2014
Posts: 12,551
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,551
Idaho
What does the owners manual spec?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Best synthetic for Mazda Direct Injection? [Re: MCompact] #4035420
03/11/16 11:21 AM
03/11/16 11:21 AM
Joined: Dec 2008
Posts: 3,116
Occupied Virginia
Bottom_Feeder Offline
Bottom_Feeder  Offline
Joined: Dec 2008
Posts: 3,116
Occupied Virginia
Originally Posted By: MCompact
I ran M1 5W-30 in my 2007 Mazdaspeed 3 for over 158k miles with no deposit or wear issues at all.

Which does not have a DI engine.

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035421
03/11/16 11:23 AM
03/11/16 11:23 AM
Joined: Dec 2008
Posts: 3,116
Occupied Virginia
Bottom_Feeder Offline
Bottom_Feeder  Offline
Joined: Dec 2008
Posts: 3,116
Occupied Virginia
Your driving habits and quality of gas you use will have much more effect on deposit buildup on a DI engine than motor oil will.

Re: Best synthetic for Mazda Direct Injection? [Re: Bottom_Feeder] #4035425
03/11/16 11:27 AM
03/11/16 11:27 AM
Joined: Mar 2016
Posts: 1,011
PA,US
HemiHawk Offline
HemiHawk  Offline
Joined: Mar 2016
Posts: 1,011
PA,US
Originally Posted By: Bottom_Feeder
Originally Posted By: MCompact
I ran M1 5W-30 in my 2007 Mazdaspeed 3 for over 158k miles with no deposit or wear issues at all.

Which does not have a DI engine.


I thought the 2.3L turbos were DI? https://en.wikipedia.org/wiki/Mazda_L_engine#2.3L_DISI_Turbo_.28L3-VDT.29

To the OP, where are you noticing the carbon build up?


2016 Nissan Frontier Pro4x
2017 VW GTI sport
1995 Mustang GTS
Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035439
03/11/16 11:39 AM
03/11/16 11:39 AM
Joined: Nov 2004
Posts: 75
Orlando, FL
perryg114 Offline OP
perryg114  Offline OP
Joined: Nov 2004
Posts: 75
Orlando, FL
No I have not torn into an engine that I have had for about a week LOL.

Manual calls for 0w20 for this country but in other areas you can use 5W30. Any down side as far as wear running 0W20? I am more worried about engine life than MPG.

As far as driving habits, I am a lead foot. I have been running 89 octane from Kroger. I have thought about running Chevron. 13:1 compression ratio. Once I get it broke in, and have some mileage stats, I will try 87 and see if there is any decrease in MPG.

Perry

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035458
03/11/16 12:09 PM
03/11/16 12:09 PM
Joined: Jan 2009
Posts: 13,972
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,972
Illinois
M1 is not grp 3. Mobil Super Synthetic is. M1 oils perform very well in high heat as the M1 5-30 has the HTO-06 Honda high heat low deposit spec.


2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

Re: Best synthetic for Mazda Direct Injection? [Re: perryg114] #4035460
03/11/16 12:11 PM
03/11/16 12:11 PM
Joined: Mar 2013
Posts: 5,020
The Midwest
skyactiv Online content
skyactiv  Online Content
Joined: Mar 2013
Posts: 5,020
The Midwest
I'm thinking driving a vehicle hard equipped with a DI engine negates the formation of intake valves deposits.

Last edited by skyactiv; 03/11/16 12:12 PM. Reason: i suck

Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Best synthetic for Mazda Direct Injection? [Re: Bottom_Feeder] #4035461
03/11/16 12:11 PM
03/11/16 12:11 PM
Joined: Jan 2009
Posts: 13,972
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,972
Illinois
Originally Posted By: Bottom_Feeder
Originally Posted By: MCompact
I ran M1 5W-30 in my 2007 Mazdaspeed 3 for over 158k miles with no deposit or wear issues at all.

Which does not have a DI engine.


DI engines seem to be tech in reverse.


2007 Ford Fusion 235,000 miles
M1 0-20 EP
2017 Ford Fusion 60K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and Valvoline LV
M1 10-30 in all OPE
MC filters

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