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Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? - Car Talk - Nairaland

Nairaland ForumNairaland GeneralCar TalkPlease, Why Do Engine Oil Manufacturers Make 20W50 Oil? (1022 Views)

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Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by LucemFerre(op): 9:39am On Aug 01, 2025
Every video, blog, car manufacturers etc always advise against the use of 20w50 oil. Can anybody enlighten me about why manufacturers still produce those oil types?

Why don't the big oil producers leave the generator oil business for "Amasco" and focus on making oil that is recommended. I mean it should be used more, right?
Help pls
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by erico2k2(m): 11:15am On Aug 05, 2025
LucemFerre:
Every video, blog, car manufacturers etc always advise against the use of 20w50 oil. Can anybody enlighten me about why manufacturers still produce those oil types?

Why don't the big oil producers leave the generator oil business for "Amasco" and focus on making oil that is recommended. I mean it should be used more, right?
Help pls
What car are you attempting to use this grade of OIL?
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by sultaan(m): 4:09pm On Aug 05, 2025
There is Nigeria, and there is the rest of the world.

I have seen the oil used by motor bikes, but not cars.

Every engine has different needs, and that oil was for engines of 1980
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 4:46pm On Aug 05, 2025
For every toks car and replaced engine
It's always good to break in with mineral oil for at least a month plus b4 flushing n then adding the required oil. If u rush to pour either ow20 5w20.5w30..etc. e go smoke las las.
I've used road side oil to wash my uncles highlander engine. We bought 3litres 5k.
Diesel 1k.poured 2litres.with 1 liter.
1st drain... black oil
2nd drain..light black
3rd drain goldish black
4th drain .clean .
5th time. We poured in 5w30.

Everything no be ringing
Buy cos mechanics are poor n wanna spoil your car.theyd do a shabby job
No borescope
No guage
No valve spring torque quage
Nothing.

Nigeria is a dead place.
Watch domiz like nurey n Co come 4me.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 7:07pm On Aug 05, 2025
You mean it's not advisable to start using new only on toks car with flushing?

2cribz:
For every toks car and replaced engine
It's always good to break in with mineral oil for at least a month plus b4 flushing n then adding the required oil. If u rush to pour either ow20 5w20.5w30..etc. e go smoke las las.
I've used road side oil to wash my uncles highlander engine. We bought 3litres 5k.
Diesel 1k.poured 2litres.with 1 liter.
1st drain... black oil
2nd drain..light black
3rd drain goldish black
4th drain .clean .
5th time. We poured in 5w30.

Everything no be ringing
Buy cos mechanics are poor n wanna spoil your car.theyd do a shabby job
No borescope
No guage
No valve spring torque quage
Nothing.

Nigeria is a dead place.
Watch domiz like nurey n Co come 4me.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 7:14pm On Aug 05, 2025
What i meant was. If u just got the car..after draining the follow come oil.use mineral oil for likr 3 weeks if ubdey drive the car everyday..then after that use engine flush.then apply the oil cap requirement direct. If na 0w20...5w 20..etc. no go buy fake oil o. Cos now fake oils are everywhwre. Id advice u buy it in 1 liter ...or if u can s33 can 1liter.buy up to 6 or 7 once.fake oils are everywhere.from total to mobil..they are all selling fakes.nigeria is already a dead place. I saw a mofoka selling vulture meat on facebook yesterday.u can imagine vulture meat.which ks poison to the body...but when dem grill am.u go call am suya
minista94:
You mean it's not advisable to start using new only on toks car with flushing?
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 7:33pm On Aug 05, 2025
Ọmọ this is another protocol ooo
I was advised to just do normal servicing, drainage the follow come oil and use the new oil.

Secondly, is it advisable to use same 0w 20 here in Naija, i heard it's meant for USA weather

2cribz:
What i meant was. If u just got the car..after draining the follow come oil.use mineral oil for likr 3 weeks if ubdey drive the car everyday..then after that use engine flush.then apply the oil cap requirement direct. If na 0w20...5w 20..etc. no go buy fake oil o. Cos now fake oils are everywhwre. Id advice u buy it in 1 liter ...or if u can s33 can 1liter.buy up to 6 or 7 once.fake oils are everywhere.from total to mobil..they are all selling fakes.nigeria is already a dead place. I saw a mofoka selling vulture meat on facebook yesterday.u can imagine vulture meat.which ks poison to the body...but when dem grill am.u go call am suya
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 7:39pm On Aug 05, 2025
If its whats the engine oil needs for the car..but to me e too light and e go quickly dry out when naija heat start,with heat from engine bay,heat from road..u can start with it and observe if it drops every 3days or 2days b4 u decide to upgrade the oil...use highger viscosity oil.if not your engine go knock out of no oil.if u like listen to the others who would want to counter me.they will be praying make u come dia shop.so dem go chop u then scatter yoir engine. Nigeria climate wont tolerate such oil.it will thin out fast and knock.
minista94:
Ọmọ this is another protocol ooo
I was advised to just do normal servicing, drainage the follow come oil and use the new oil.

Secondly, is it advisable to use same 0w 20 here in Naija, i heard it's meant for USA weather
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 7:53pm On Aug 05, 2025
So I should go with 5w-30 if the recommended oil on the cover is 0w-20?

Secondly, is it likely you can get fake oil from mobil filling?

2cribz:
If its whats the engine oil needs for the car..but to me e too light and e go quickly dry out when naija heat start,with heat from engine bay,heat from road..u can start with it and observe if it drops every 3days or 2days b4 u decide to upgrade the oil...use highger viscosity oil.if not your engine go knock out of no oil.if u like listen to the others who would want to counter me.they will be praying make u come dia shop.so dem go chop u then scatter yoir engine. Nigeria climate wont tolerate such oil.it will thin out fast and knock.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 9:06pm On Aug 05, 2025
Do as u wish.ive told u n given u hints...u r a graduate. Use your brain. Dont wait to be spoonfed
minista94:
So I should go with 5w-30 if the recommended oil on the cover is 0w-20?

Secondly, is it likely you can get fake oil from mobil filling?
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 9:34pm On Aug 05, 2025
Nawa o
Answer me na, I'm a first time car owner that's why I'm asking not to make mistakes.

2cribz:
Do as u wish.ive told u n given u hints...u r a graduate. Use your brain. Dont wait to be spoonfed
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 10:24pm On Aug 05, 2025
Follow my lead and u can never go wrong. Dont allow any mofoka make u digress.they are after your money and would want u to come tondia shop so they will acatter your engine and car 4u. 1stly equip yourself with youtube....get a personal obd scanner.the type thay uses wire connected to the cars obd port under steering.
Dont use that oil. Its for america and not nigeria.
Climate change is diff here in naija. U couldnuse it and be feeling funky that nothing go sup .e go shock u say after 2 months,the engine oil fit remain only 3 % and gboom.your oil pump gwts starved and gbooah. Engine go knock.that wud be the beginning of your problem. Go for higher viscocity.start from 10w30 or 10w 40. Also whats the mileage.it wud def be a high mileage car with rolled back odometer to fool us here. Search for the vin of the car 1st online and get back to me with the mileage .if its above 100k.then zero ypur mind from that useless pure water like 0w20 oil.
minista94:
Nawa o
Answer me na, I'm a first time car owner that's why I'm asking not to make mistakes.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 10:58pm On Aug 05, 2025
Mileage is 165k miles

2cribz:
Follow my lead and u can never go wrong. Dont allow any mofoka make u digress.they are after your money and would want u to come tondia shop so they will acatter your engine and car 4u. 1stly equip yourself with youtube....get a personal obd scanner.the type thay uses wire connected to the cars obd port under steering.
Dont use that oil. Its for america and not nigeria.
Climate change is diff here in naija. U couldnuse it and be feeling funky that nothing go sup .e go shock u say after 2 months,the engine oil fit remain only 3 % and gboom.your oil pump gwts starved and gbooah. Engine go knock.that wud be the beginning of your problem. Go for higher viscocity.start from 10w30 or 10w 40. Also whats the mileage.it wud def be a high mileage car with rolled back odometer to fool us here. Search for the vin of the car 1st online and get back to me with the mileage .if its above 100k.then zero ypur mind from that useless pure water like 0w20 oil.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 11:02pm On Aug 05, 2025
Zero your mind from that oil. Start with 10w40. And watch the level after 3 to5 days. Also note that our petrol is madly bad.our petrol now is like drinking water mixed with lime.its acidic n bad. So over time your engine will gather carbon on piston crown..valves....plugs.... as u dey buy half tank.dey add fuel additives. Your engine na better high mileage engine.almost close to its last leg
minista94:
Mileage is 165k miles
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 11:08pm On Aug 05, 2025
Okay thanks

2cribz:
Zero your mind from that oil. Start with 10w40. And watch the level after 3 to5 days. Also note that our petrol is madly bad.our petrol now is like drinking water mixed with lime.its acidic n bad. So over time your engine will gather carbon on piston crown..valves....plugs.... as u dey buy half tank.dey add fuel additives. Your engine na better high mileage engine.almost close to its last leg
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 11:21pm On Aug 05, 2025
Please is this type of OBD2 okay?

2cribz:
Zero your mind from that oil. Start with 10w40. And watch the level after 3 to5 days. Also note that our petrol is madly bad.our petrol now is like drinking water mixed with lime.its acidic n bad. So over time your engine will gather carbon on piston crown..valves....plugs.... as u dey buy half tank.dey add fuel additives. Your engine na better high mileage engine.almost close to its last leg

Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 2cribz: 11:31pm On Aug 05, 2025
No disturb me.
minista94:
Please is this type of OBD2 okay?
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by minista94(m): 11:34pm On Aug 05, 2025
Okay sir

2cribz:
No disturb me.
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by 9icetoo(m): 10:34am On Aug 06, 2025
2cribz:
No disturb me.
cheesy
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by LucemFerre(op): 7:06pm On Aug 11, 2025
erico2k2:
What car are you attempting to use this grade of OIL?
Just generally curious. No particular car but, all cars from 2005 to date
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by erico2k2(m): 10:11pm On Aug 11, 2025
LucemFerre:
Just generally curious. No particular car but, all cars from 2005 to date
cos that oil is not meant for our every day cars, everyday cars on the road is either 5W30 or 10 W 40 etc
that 20 is a big number
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by LucemFerre(op): 9:22am On Aug 15, 2025
erico2k2:
cos that oil is not meant for our every day cars, everyday cars on the road is either 5W30 or 10 W 40 etc
that 20 is a big number
So why is it still being produced by manufacturers. Matter of fact shouldn't Nigeria ban the oil?
Re: Please, Why Do Engine Oil Manufacturers Make 20W50 Oil? by erico2k2(m): 10:39am On Aug 15, 2025
LucemFerre:
So why is it still being produced by manufacturers. Matter of fact shouldn't Nigeria ban the oil?
Its your duty to k now the type of Oil weight you car manufacturer specify. ITS YOUR DUTY. The higher weight are made for heavy duty machines and some race cars. Its heavily used in motor cycles, and some high performance cars.
1 Reply

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