0W-20 or 5W-30 alternate per Manual - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

redwine · 01-22-2018, 02:36 PM

Hello,

Just want to have some opinions.

From the Manual (Asia version, summer all year round),
It state that if you use 5W-30 oil,
your next oil change must revert to 0W-20.

But my distro only have 5W-30.
Would there be any problem if i use 5W-30 all the way without going back to 0W-20 ?

I'm ok with the slight decrease in fuel economy.
Not sure if the more 'heavy' oil will shorten the life of the pump or other stuffs.

Thanks

redwine · 01-22-2018, 02:43 PM

Just to add on...

On the factory oil (which is 0W-20),
From the day i collect the new car till 1k,
the oil level was constant at the upper line (dip stick).

I change to Motul 300V 5W-30 at 1k (km),
till now (7k km) i notice the oil level have drop 1/4inch below the upper line (est 0.4Quart)

Wondering if the oil weightage have any bearing on oil consumption.

nikitopo · 01-22-2018, 02:56 PM

Motul 300V is much better for racing, but should be changed sooner than conventional oils. There isn't something like a universally better oil. It depends the application. The same holds about the oil weights.

humfrz · 01-22-2018, 03:01 PM

Quote:

Originally Posted by redwine

Hello,

Just want to have some opinions.

From the Manual (Asia version, summer all year round),
It state that if you use 5W-30 oil,
your next oil change must revert to 0W-20.

But my distro only have 5W-30.
Would there be any problem if i use 5W-30 all the way without going back to 0W-20 ?

I'm ok with the slight decrease in fuel economy.
Not sure if the more 'heavy' oil will shorten the life of the pump or other stuffs.

Thanks

I reckon your car's engine will survive using 5W-30.

If anything, the engine may use a bit more of the lighter (0W-20) oil.

However, I'd suggest you look around for some 0W-20 oil to use (for warranty reasons if nothing else).

humfrz

Ernest72 · 01-22-2018, 09:32 PM

no need for anything more than a good 0W20, unless you are tracking, autox, etc. maintain level and intervals and you are good to go.

steve99 · 01-22-2018, 10:46 PM

If you never see below 0 celcius temps 5w30 synthetic is fine and in fact better suited to warm climates. I assume where you are in asia is fairly warm all year.

Im in Australia (never see below about 5C and summer temps to 35C been using 5w30 for 4 years E85 fuel and track time no issues at all.

no noticeable difference in fuel economy
no noticeable oil consumption

during schedule service Subaru were using 5w30 and 10w30

Zentec · 01-23-2018, 02:24 AM

As per JDM Subaru OM you can go racing 5w40. With out any side effects. The only reason 0w20 is in there is for fuel economy kick back and cold weather starting. So yes you can run the 5w30 with no worries! An oil cooler would really help it will help maintain oil pressure and add longevity to your engine. Attached is the JDM Japanese page.

Zentec · 01-23-2018, 02:26 AM

Quote:

Originally Posted by steve99

If you never see below 0 celcius temps 5w30 synthetic is fine and in fact better suited to warm climates. I assume where you are in asia is fairly warm all year.

Im in Australia (never see below about 5C and summer temps to 35C been using 5w30 for 4 years E85 fuel and track time no issues at all.

no noticeable difference in fuel economy
no noticeable oil consumption

during schedule service Subaru were using 5w30 and 10w30

Are you running an oil cooler yet? I will once I get the cash

steve99 · 01-23-2018, 06:20 AM

Quote:

Originally Posted by Zentec

Are you running an oil cooler yet? I will once I get the cash

Yes have oil cooler

Tokay444 · 01-23-2018, 09:32 AM

Quote:

Originally Posted by Zentec

As per JDM Subaru OM you can go racing 5w40. With out any side effects. The only reason 0w20 is in there is for fuel economy kick back and cold weather starting. So yes you can run the 5w30 with no worries! An oil cooler would really help it will help maintain oil pressure and add longevity to your engine. Attached is the JDM Japanese page.

This. Never let the EPA spec your motor oil for you.

stevesnj · 01-23-2018, 09:56 AM

I use 0w-20 in the winter and 5w-30 in the summer here in New Jersey in the USA

redwine · 01-23-2018, 01:07 PM

Thanks Guys !!

Looks like 5W-30 should be a safe bet.
The climate here is usually 25C - 35C all year round.

Rgds

humfrz · 01-23-2018, 03:04 PM

Quote:

Originally Posted by stevesnj

I use 0w-20 in the winter and 5w-30 in the summer here in New Jersey in the USA

Well, now, that's old school fer sure ...... 20 weight in the winter ..... 30 weight in the summer ......

humfrz

Tokay444 · 01-23-2018, 04:18 PM

I split the difference and 0w-40 year round.

01-22-2018, 02:36 PM	#1
redwine Member Join Date: Aug 2017 Drives: BRZ Location: Asia Posts: 48 Thanks: 7 Thanked 7 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	0W-20 or 5W-30 alternate per Manual Hello, Just want to have some opinions. From the Manual (Asia version, summer all year round), It state that if you use 5W-30 oil, your next oil change must revert to 0W-20. But my distro only have 5W-30. Would there be any problem if i use 5W-30 all the way without going back to 0W-20 ? I'm ok with the slight decrease in fuel economy. Not sure if the more 'heavy' oil will shorten the life of the pump or other stuffs. Thanks

01-23-2018, 02:24 AM	#7
Zentec Senior Member Join Date: May 2017 Drives: 2017 Toyota 86 Location: Las Vegas Nv Posts: 214 Thanks: 194 Thanked 78 Times in 63 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	As per JDM Subaru OM you can go racing 5w40. With out any side effects. The only reason 0w20 is in there is for fuel economy kick back and cold weather starting. So yes you can run the 5w30 with no worries! An oil cooler would really help it will help maintain oil pressure and add longevity to your engine. Attached is the JDM Japanese page. Attached Images

01-23-2018, 09:56 AM	#11
stevesnj Senior Member Join Date: May 2013 Drives: 2016 FR-S Oceanic Blue Location: Southern NJ Posts: 2,958 Thanks: 2,158 Thanked 1,601 Times in 923 Posts Mentioned: 30 Post(s) Tagged: 2 Thread(s)	I use 0w-20 in the winter and 5w-30 in the summer here in New Jersey in the USA __________________ My 2016 Build thread TRD Exhaust with custom quad tips, TRD Lowering Springs,TRD Quick shifter,LED;DRL, Projectors, and turn signals. Re-badge, 86 Nanny, WinmaxW2 Pads, K&N Drop In, Antenna delete

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01-22-2018, 02:43 PM	#2
redwine Member Join Date: Aug 2017 Drives: BRZ Location: Asia Posts: 48 Thanks: 7 Thanked 7 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Just to add on... On the factory oil (which is 0W-20), From the day i collect the new car till 1k, the oil level was constant at the upper line (dip stick). I change to Motul 300V 5W-30 at 1k (km), till now (7k km) i notice the oil level have drop 1/4inch below the upper line (est 0.4Quart) Wondering if the oil weightage have any bearing on oil consumption.

01-22-2018, 02:56 PM	#3
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,417 Thanked 1,947 Times in 1,263 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	Motul 300V is much better for racing, but should be changed sooner than conventional oils. There isn't something like a universally better oil. It depends the application. The same holds about the oil weights.

01-22-2018, 09:32 PM	#5
Ernest72 Senior Member Join Date: Jul 2016 Drives: 16 Silver BRZ, 04 Silver WRX wagon Location: Rockland county, NY Posts: 1,429 Thanks: 186 Thanked 776 Times in 446 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	no need for anything more than a good 0W20, unless you are tracking, autox, etc. maintain level and intervals and you are good to go.

01-22-2018, 10:46 PM	#6
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,996 Thanks: 1,035 Thanked 4,993 Times in 2,983 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	If you never see below 0 celcius temps 5w30 synthetic is fine and in fact better suited to warm climates. I assume where you are in asia is fairly warm all year. Im in Australia (never see below about 5C and summer temps to 35C been using 5w30 for 4 years E85 fuel and track time no issues at all. no noticeable difference in fuel economy no noticeable oil consumption during schedule service Subaru were using 5w30 and 10w30

01-23-2018, 01:07 PM	#12
redwine Member Join Date: Aug 2017 Drives: BRZ Location: Asia Posts: 48 Thanks: 7 Thanked 7 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Thanks Guys !! Looks like 5W-30 should be a safe bet. The climate here is usually 25C - 35C all year round. Rgds

01-23-2018, 04:18 PM	#14
Tokay444 Banned Join Date: Feb 2016 Drives: 17 White 860. RCE Tarmac 2. RE-71RS Location: Not Canada Posts: 1,752 Thanks: 938 Thanked 1,024 Times in 581 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	I split the difference and 0w-40 year round.

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