Official Engine Oils/Lubricants Discussion Thread

[anon35615524]

Brother all the info on Google is not reliable, nor all the information on internet is to be believed in.

If you see carefully, I think the link is of some "cardekho" website, and not official Suzuki website. And under "People also ask"; first recommendation is 5w-30, but API SG+, SL, SJ seems not updated.

The current rating for API (American Petroleum Institute) is API SN / SN Plus, which is fully compatible with K10B, and it must be used instead of old ratings. The latest the rating of oil (like API SN instead of API SJ) is, the better it is! (provided it covers old ratings too)

1KR-FE, K10B, K10C, R06A, and other similar category small displacement engines are aimed towards fuel efficiency, and to attain this, thinnest possible oils must be used, but of course, the ones recommended by the OEM (if OEM recommends 0w-20 at max., you cannot go for even thin grade, like 0w-16, there are limits defined by the OEM).

If you will pour thick oils, engine will not be able to provide good fuel efficiency, rather it will keep on struggling with the viscosity of that thick engine oil.

Design of oil pumps and their working in engines is also very sensitive towards engine oils. You keep on using thick engine oils, a time may come when oil pump stops performing its intended function (i.e. lubrication of engine parts) and engine may start heating up.

I hope, it explains. Thank you.

[def3nder]

The current rating for API (American Petroleum Institute) is API SN / SN Plus, which is fully compatible with K10B, and it must be used instead of old ratings. The latest the rating of oil (like API SN instead of API SJ) is, the better it is! (provided it covers old ratings too)

Learned something new again. Thanks All I am thinking should i tell this wagonR guy that dont put 15w40 or not. because this guy is elder thn me. kahi mind he na kar jain. Btw us wagonR ki mileage is good.

[dms664]

what viscosity is recommended in wagon r manual?

[def3nder]

15w40

[anon35615524]

Yes. You can ask him to switch to 5w-30, preferably after engine flush. His car's mileage will become even better.

After 80-90,000 Kms of driving on 15w-40 (if he doesn't switch to 5w-30), I fear his car's engine will be flooded with gunk, sludge, etc.

[alam2632]

The PakSuzuki 3S guys usually pour 10W-30 during the service. Unless, you specify yourself.
Preferred is SAE 0W-20.

[dms664]

if 0w20 is in manual then 5w30 will be good choice as the car has already been driven on 15w40

[anon35615524]

Despite the fact that 0w-20 and 5w-30 are clearly mentioned in the manual, these cover most temperature ranges, and 0w-20 is the preferred engine oil Grade; still if Pak Suzuki people doesn't pour it, then I can only pray.

[def3nder]

which car manual is this?

[alam2632]

PakSuzuki WagonR obviously.
Lol. Why would I post another car's manual picture though?
And also share the picture or reference to the manual which is recommending 15W-40 for this car.
15W-40 is typically used in Diesel Engines, a simple Google search says that. Gasoline cars will run fine too. But there's a difference between running fine and running optimally.

[brownrose78]

Toyota people told me that Oil change interval will be calculated on the basis of mileage plus time period in case of mineral oil only

In synthetic oils, no limitations of time period as they have additives so look for mieleage only in case of synthetic oils

[def3nder]

If 100% true then its happy news I have changed oil after two years driven 4500kms only..

[anon35615524]

Toyota people told me that Oil change interval will be calculated on the basis of mileage plus time period in case of mineral oil only

I would disagree. Drain interval depends on both mileage as well as time period, irrespective Fully Synthetic, semi synthetic or mineral oils.

In synthetic oils, no limitations of time period as they have additives so look for mieleage only in case of synthetic oils

Even in case of fully synthetics, mileage and time period both matter. Just for reference, please have a look at the premium, signature series 0w-20 engine oil by Amsoil. It has been clearly written that it is suitable for up to 25,000 miles or 01 year (whichever comes first). Even if the oil has been used for 5,000 miles, still, it must be changed after 01 year (I believe, this is because, oil loses its properties with the passage of time).

Source: https://www.amsoil.com/shop/by-product/motor-oil/gasoline/sae-0w-20-signature-series-100-percent-synthetic-motor-oil/?code=ASMQT-EA

[dms664]

nothing happens
i have changed wagon r oil after 1.5 years. it was driven 3.5k km only on that oil. changed due to time lapsed

[def3nder]

ya same

[captain.mujtaba]

For how many km's can we use liqui moly 5w-30?

[fastian04]

Not correct sir, every oil has an expiration date when put in engine since it gets oxidized. Even the moat premium synthetic oils have expiry of 6 months-1 year. U can check amsoil/mobil1 as well. If someone like me drives less in a year then amsoil xl series will have to replaced after 6months/10k kms. If using signature, its 1year/15000-20000kms. I hate such long intervals in these pessenger cars with 3-4 liters oil quantity.

Quartz 9000 has been proven to be excellent till 7-8k kms but upper limit will remain 6 months

[captain.mujtaba]

Can anyone tell me the price of liqui moly special tec AA 5w-30?

[sohaibsulehria]

6200 Rupees for 4L

[dms664]

why to buy so costly when no filter in pakistan can sustain such long ocis. I would rather go with total quartz 9000 in less than half price of LM