Suzuki Swift 2020 Oil Viscosity Recommendation

[qasimahmedmisc]

AOA PakWheelers!

I have recently purchased a Swift Automatic 2020 with 7K on the ODO.
Oil was changed at 5K from Suzuki Mini Motors Lahore and they used 10W-40 mineral oil.
Upon reading the manual the recommended oil is 0W-20 but many people on PakWheels forum strongly disagree and say that M13A is not designed to handle thin oils such as 0W-20 in Pakistan's climate conditions.

I have 2 main questions:

1) Why does the outside temperature matter when the oil will be at almost 90-100 C because that is the normal operating range of the engine?

2) If an engine does not reduce oil by using 0W-20 but can thin oil still cause damage?

I have recently visited Suzuki Mini Motors where they showed me a service bulletin which recommends 0W-20 for PKDM Swift.
I emailed Suzuki and they also recommend 0W20 and 10W-40 for PKDM Swift

Need sincere advice on what to do since the engine is new so I can shift to thin oil now. If I keep using 10W-40 then it would be impossible to shift to 0W-20 later. Please see the Pictures attached below.

Thanks and Regards

[anon35615524]

W.S.

I have recently purchased a Swift Automatic 2020 with 7K on the ODO.

1st of all, heartiest congratulations and felicitations on your purchase dear brother.

May it serve you long, may it serve you well. Ameen. Sum-Ameen.

they used 10W-40 mineral oil.

Avoid it at all costs from next engine oil change.

M13A is not designed to handle thin oils such as 0W-20 in Pakistan's climate conditions.

I think its not correct. As long as an engine oil grade / viscosity is mentioned in the manual, it is safe to use, however, if chart is also given, temperature VS Viscosity, then it may also be taken in to consideration, before going for a particular engine oil grade / viscosity.

[anon35615524]

Why does the outside temperature matter when the oil will be at almost 90-100 C because that is the normal operating range of the engine?

A lot depends on the design of engine; its oil pump, clearances, etc., accordingly, in case of newer engines, or engines based on newer techs., a particular and specific engine oil grade is recommended for that engine, and engine performs optimum (if not best) at that specific engine oil grade.

In case of old engines, or automobiles with old engines, in their owners / users manuals, charts may be given, temperature VS Viscosity, to select an oil grade based on outside temperature, and it basically provides flexibility.

These both are separate things, and may not be taken as universal, and its best to follow the owners / users manual specific to that make, model, model year, etc.

[anon35615524]

Thick VS Thin oils is a never ending debate.

In your particular case, if chart is given, then you may choose that oil grade grade which meets outside temperature requirements, however, if a specific engine oil grade has been mentioned, then it would be better to only use that specific engine oil grade.

Some also claim that 20w-50, which is considered one of the most thickest oils, can safely and easily pass through the min. spacing in any modern, gasoline engine, so thin VS thick oil automatically comes to an end, or at least, it should, but it does not happen.

[pwuser158913575038]

Brother congratulations on your new car.
As far as i know, 0w20 performs great in this car. One of my friends uses zic 0w20 and his car is very smooth. U may change to 0w20 and check oil level a week after changing.

[htb456]

The ambient temperature and viscosity chart is valid for air cooled engines and may serve as a rule of thumb for coolant cooled ICE. However, since the operating temperature on engine is already high, ambient temperature (usual climate on earth) has no impact on it since the cooling system maintains the optimum temperature. Now coming to thick vs thin oils, modern ICE are designed with tighter tolerances hence they require thin oils to flow properly, esp during first startup in the morning irrespective of the weather. Using thick oil caused oil starvation during the morning startup and slowly kills the engine. Swift has a modern engine, compared to G and F series by suzuki, but it is also slightly high revving one. In my opinion, 0w20 might work perfect in it but a more safer choice would be 5w30

[Obxe]

Use 5w30 suzuki OEM oil in the new engine.
I am using it from 1000km onwards in my swift auto

[rajaahmed96]

Total Quartz 5W30 fully synthetic

[capsat]

Pak Suzuki is discontinuing Swift from next year. Although the company did claim that they would manufacture 2,432 Swift from August 2020 till August 2021.

However, other variants over Suzuki Swift are in production including 668 DLX NAV variants and 2423 AT NAV variants in 2021. Furthermore, Pak Suzuki informed their stakeholders that the total quantity as per their plan is final but monthly quantity might differ due to demand.

[dms664]

How much mileage u r getting with that oil on swift auto?

[dms664]

Why they are discontinuing a car which sales wise is currently doing better than others competitors

[qasimahmedmisc]

Thanks! Means alot Sir. The owner manual says that 0W-20 is the best choice for fuel economy and starting in cold weather. However there is a chart above the line which says to use 10W-40 above 40C which doesn't make sense since engine temperature is already alot higher than outside temperature.

[qasimahmedmisc]

Thanks for the clarification. I will go for 0W-20 and observe the engine very carefully. If I feel something is off then I'll immediately shift to 5W-30. Do you think this strategy is right?

[qasimahmedmisc]

Thanks Sir. Good to know that I'm not the only one questioning why Suzuki puts 10W-40 in every car.

[qasimahmedmisc]

I am not going to use Suzuki OEM oil since it isn't the best available. I have personally decided to try TOTACHI oil after alot of research. As for the average I get 9-10 Km/l but I drive with a heavy foot.

[htb456]

yes, you can do it this way

[pwuser158913575038]

I would suggest zic. Personally have great experience with it.

[qasimahmedmisc]

Yes. But due to so many fake oils in Lahore I'm scared. I'll try ZIC only if I get it from a reliable source. Metro /Hyperstar didn't have 0W-20 the last time I checked.

[Salmaanawan]

Totachi wotachi is garbage, why would you go for an oil which you can't find in the country of its origin (Japan), an oil which isn't even known anywhere in the world. Even their Facebook page seems super shady. You're better off purchasing an oil from a reputed brand such as Total, Shell, hell even PSO over this Totachi nonsense.
I can guarantee you if I package dirt nicely, label it as LiquiMoly or Totachi additive that you add with your engine oil for less friction in moving parts + BHP gain and give it a fake Made in Germany or Made in Japan approval, I will become a millionaire in a few days. Don't fall for this stuff.
Totachi, Abro, etc. Steer clear.

[pwuser158913575038]

Why dont u purchase from their site?