All outgoing email has been globally disabled by an administrator. No email notifications of any kind will be sent.
May 2020
1 / 81
May 2020
Oct 2022
pwuser158988275979PWUser158988275942
Posts: 1Joined: May 2020
May '20
1

Their manual says to start with 5W30 oil in a new car but why they are using 20W50 in new cars?
my driver used to get it done but after 3 years of usage i once saw the job card book mentioning it TMO-PET-SL/CF...
will this much thick oil in the car working for 3 years in the car engine have made a certain clearance in ring/pistons or all moving parts...
my car has run 76000 Kms and want to switch to some better option like 5W50 Mobil 1. Should i go for it ...
any effect on engine life???
pls guide with your experience and knowledge.
regards,

  • created

    May '20

  • last reply

    Oct '22
  • 80

    replies

  • 6.6k

    views

  • 18

    users

  • 108

    likes

  • 6

    links

Frequent Posters

Popular Links

18Bearing Clearance and Oil Viscosity Explained k1technologies.com
4Motor Oils FAQs co.uk
2Automotive Fluids Home co.uk
0Base Oils Explained | KEW Engineering Ltd. co.uk
0Lubrication Explained | KEW Engineering Ltd. co.uk
show more links...

There are 80 replies with an estimated read time of 11 minutes.

yrmd26Yash Roop
Posts: 55Joined: Jan 2020
May '20

You can switch to 5w30 if the engine is fine even after it has clocked 100k kms.

scholar.centerNewbie
Posts: 473Joined: Sep 2016
May '20

Now much mileage passed on car. If engine good. You may switch to 10w40. Much suitable for this envirinment as well.

murtazamohammad54Murtaza Muhammad
Posts: 645Joined: Apr 2020
May '20

Stick to what the manual says. Don't ever agree with what they tell you to do unless the manual mentions it. Yes using a thicker oil will cause your car do be less efficient and it is not recommended. Also at service stations workers may try to school you to use a thicker oil for your car due to mileage.

Just go with what the manual says and use good quality oil and change it at the set intervals. You can never go wrong!

saqibhassan95Senior PakWheeler
Posts: 3253Joined: Nov 2015
May '20

Ignorance, nothing else
Stick to 5w30 fully synthetic

anon35615524
Posts: 11819Joined: Mar 2018
May '20

These dealerships will pour anything, which is available to them in cheap, and in abundance.

Well, based on feedback and suggestions, my opinion would be to opt for either 10w-30 by Caltex / havoline, or 10w-40 by ZIC, provided engine health is perfect in all respects, etc.

Both are value to money brands and options in their respective leagues IMO.

anon35615524
Posts: 11819Joined: Mar 2018
May '20

It may also be avoided. Its almost twice as thick as 5w-30, or even 10w-30.

If 5w-30 had been poured in your car since day 01, then I would have suggested to continue with it and no need to change, however, now, you car has clocked almost ~76,000 Kms in 03 years, on that ridiculously thick oil.

If you switch to 5w-30 now, it might be possible that nothing happen, but however, if after some time, like months, engine oil consumption starts, you see smoke from the exhaust, etc. then who would take responsibility, for recommended, but wrong engine oil grade at this stage? I think none.

So, its better to play safe, and choose between 10w-30 or 10w-40, instead of 5w-30. Rest, your car, your money, your choices! :+1:

Best of luck! :+1:

capsatومن شر حاسد إذا حسد
Posts: 30816Joined: Apr 2006
May '20

20W-50 is poured so as to clean up the new engine. It shall be changed at 1st free service, or at 5000 km service.

you can ask the dealership to use 5W-30 refer to the particular page from the user manual. Insist upon it and if it is declined or given an excuse of warranty issue plainly ask dealership to give that in writing about warranty.

make sure to change engine oil filter as well.

stay safe drive safe wear mask do not go out without valid reason better stay home wash hands more often

Massive_OnePakWheeler
Posts: 3349Joined: Dec 2009
May '20

exactly, i was also baffled by that. It is not only in Pak, but also in Saudia.
after 2 years i found out that Toyota was pouring in 10W40, whilst the manual says 5W30 preferred. : (

faakhir19Faakhir FarooqSenior PakWheeler
Posts: 2584Joined: Apr 2015
May '20

There are cctv cameras there. You can see your car live from the cameras but it's not the same as Pakistan.
Like in Pakistan, it is Indus Motor Company
In saudia there are two, one is Abdul Latif Jameel and the other is Halwani
The Halwani people are good. Wo jaane dete hain but ALJ dont let you go in
They also offer free car wash after any service but normal service charges hi bohat hain

XulfiqarSenior PakWheeler
Posts: 42242Joined: Aug 2003
May '20
Massive_One

Dealerships buy oil in bulk drums and totes - and in countries will mass illiteracy (like Pakistan, KSA, all of GCC) - they can get away with shoving junk and throwing pompous words to the vehicle owner like "grantee kensill hojaigi"

so probably at the time of the last purchase the dealership did for oil the 10W40 API (whatever) was the cheapest/discount/75% off - so they got it.

ADVERTISEMENT

Massive_OnePakWheeler
Posts: 3349Joined: Dec 2009
May '20
faakhir19

yes, i am talking about ALJ , but through camera you cannot note the oil grade they pour in.
but the question is, why do they do so... i mean if the manual says 5/30, why don't they just get that damn oil and put it in ...
i think, A) maybe they are using semi-synthetic (cheaper) ..and B) of course they will not be responsible for anything once warranty (3 years or 60,000 km) is over.. so it's kind of a win/win situation for Toyota/ALJ :confused:

Massive_OnePakWheeler
Posts: 3349Joined: Dec 2009
May '20
Xulfiqar

exactly ! :thumbsup:

dms664Senior PakWheeler
Posts: 10638Joined: Dec 2007
May '20

i am using 0w20 in car with mileage above 1 lac. should i shift to 20w50 and what is the reason for that?

Massive_OnePakWheeler
Posts: 3349Joined: Dec 2009
May '20

definitely NOT. these myths are created by mechanics mostly.
you only need to change to thicker oil if your car starts burning/reducing the lighter oil grade, otherwise be it 10 thousands km and engine is running fine, should keep on using the same oil grade~