Lubricant Discussion- Engine Oil / Gear Oil

[umerganatra1]

Assam u allaikum.
need experts advise.
which grade engine oil is best for suzuki swift 2017 dlx manual with 133k mileage.
bought car 3 months before. currently using gtx 20w50. is engine oil can impact on fuel average?
getting fuel average in city 7.5km/L short route approxe 3km daily running and highway 12.5km/L.
please advise which engine oil should i use & how to improve fuel average?
thanks in advance.

[Massive_One]

Swift isn't well known for its fuel average.

but still 7.5 kmpl is quite low , unless you drive in traffic jams all the time or karachi : )

in Lahore my swift 2013 gives 10-11.5 in city and 16 on long route..

i use 10W/40 oil.

get your car properly tuned and start using 10W/40

[sindhpolice114]

I would say the 20w50 is too thick. So as per above post I would also recommend to change to 10w40 oil.
You can use Shell HX6 10w40 or even ZIC 10w40, the zic 10w40 is Fully Synthetic and it costs slightly more than Shell 10w40, however, ZIC 10w40, being fully synth will last you longer maybe approx 7000-9000kms depending on driving conditions.

For your fuel economy the engine oil should make a slight difference, however, I would recommend taking a look at your Spark Plugs, it could be that they need to be changed if they havent been changed recently.

Also check Engine Air filter condition and throttle body condition.
But first you should change the oil and see if there is a difference or not

[mgalaxy3]

Woah why running so thick 20w50? Want to kill your engine?

Look up what is suggested in the international manuals of Swift (not Pak one, as local dealers are not updated and stuck in thick oils).

I personally wouldn’t go above 5w30 at all, w40 and w50 oils are very thick and will adversely affect fuel average as well.

[umerganatra1]

as per owner manual, recommended grade is 10w40

[sindhpolice114]

Ok, then for now just change the oil to 10w40 grade oil. You can use either ZIC 10w40 or Shell HX6 10w40 or even Kixx, or any other well known brands as per your preference and whichever one suits your budget.

Btw Suzuki says that 5w30, 10w30 and 10w40 all can be used for Swift.
But for now just change from 20w50 to 10w40 as per owners manual. I am attaching a picture of the Suzuki Service Bulletin. Uploading...

If after using 10w40 there is no oil burning and everything is going smoothly with regard to engine, then you may switch to 10w30 if all is good.

However, for now, just change from 20w50 to 10w40.

[robailmalik]

i want to change the brand of oil for my GLX swift. please share good recommendations and also if anyone has experience of using AMSOIL

[the_mira_guy_08]

I have had good experiences with Havoline ProDS 5w30. It helped clean all the oil sludge in my engine. My Mira used to burn a lot of oil and the timing chain rattled and both issues got fixed with 2-3 oil changes on time.

[sindhpolice114]

You can use Shell, Total, PSO, and ZIC as these are of good quality and reasonably priced.

But if you have the budget and really want to use 100% imported brands you can use Mobil. You can use Mobil Friction Fighter 10w40 for your car, its rated API SP

Absolutely no need to go for expensive oils like Amsoil or LiquiMoly unless you want to waste money or unless you have a car that has such requirements which are not met by other oil brands

[pwuser167222447697]

can you guys suggest me about car oil? i have alto 2022 model, 40k driven, now i want to switch suzuki oil to imported oil, car running is rough

[the_mira_guy_08]

What do you mean running rough? Was the car not serviced by the dealership correctly or did you skimp out on maintenance?

[sindhpolice114]

For alto 10w-40 is recommended on owners manual. See your owners manual for recommended engine oil grade.

Other than Suzuki Oil you can use Shell or Zic or PSO or Total Quarts.
In 10w-40 grade I would recommend Shell HX6 10w-40, or ZIC 10w-40

[the_mira_guy_08]

0w20 can be safely used as well. JDM alto had 3 engine options depending on trim level. A non vvt low comp engine, vvt high comp, and a turbo engine. Other than lower hp and tq in pkdm there would most likely be no difference to the non vvt low comp jdm engine.

[sindhpolice114]

Best if you want fully synthetic is ZIC 10W-40 which is a fully synthetic oil.
It can give you Oil change interval of 7000-9000kms depending on your driving condition.

[mgalaxy3]

0w20 or max 5w30 is recommended in all Japanese cars since 2010 at least bro.. other thicker grades will reduce the economy and might increase wear and tear too.

I always tell people to look at owner manuals from Japan or other manufacturing hubs, as local dealers only now are starting to use the proper grades ie Xw20 or 5w30. Previously they were all possessed by desi ustaads and gaarha tail. 15 years too late.

[sindhpolice114]

Yes but for climate conditions like pakistan xW40 oils also are fine to use especially in summer and more so if they are recommended in owners manual.

Xw40 oils are also widely used in German cars such as BMW and Volkswagen
Very thick oils would be considered Xw50 Xw60

Honda's outside of Pak also recommend to use either Xw30 or Xw40 oils, so there's nothing wrong as such with using those.

The best way to choose oil viscosity is to see what is recommended in owners manual and follow accordingly.

[mgalaxy3]

Sir this temperature argument is from the 80s and has been debunked many times including by @Xulfiqar ..particularly after multi grade synthetic oils. Though our desi ustaads still use thick oil logic.

No matter you are in the Death Valley deserts of US, Arab world or in Antarctica, your cars internal engine temperature is maintained at a specific temperature.

Give it the best oil it could use. Read any Japanese owners manual or a manual from any developed country.

[Xulfiqar]

His case is unique because he has a very high revving flat tappet cam engine and a rotor oil pump beating the oil to hell and back over and again. Dosing the oil with high antiwear or something else that can even help with latent heat can all show such effect.

Same situation when working on old mopars

[mrkt123]

Just to add an example. In Pakistan, toyota is using 5W30 Taglon X oil in Yaris. And if someone wants to use thicker (10W40) or thinner oil (0W20), almost everyone, including dealerships say that it is not right. But in owners manual (international version), Toyota lists all following grades as recommended viscosities: 0W20, 5W20, 5W30, 10W30, 15W40.
So as per manual xW20 is also right and xW40 is also right.

[affanhaq94]

Lots of misinformation on your end sir along this entire thread.