5W50 VS 20W50

[Hassan]

guys i have accent lc 2002 1.5L with 100k Km the car manual indicates that the suitable oil is 20w50 , 15W50 (according to ambient temperature) , is there is any issue using 5w50 instead of the indicated viscosities ?

 

[Pelican]

The bigger the gap the higher the shear, so in your case I'd stick with 20W50 or 15W50

 

[Hassan]

Originally Posted by Pelican
The bigger the gap the higher the shear, so in your case I'd stick with 20W50 or 15W50


Even if all the available 20w50, 15W50 has low API grade ( SL ) compared with 5W50 ( SN ) ?

 

[benjy]

beside the shearing due to a LOT of necessary viscosity improvers ALL thinner base oils even real synthetic are prone to burn off.

 

[DoubleNickels]

You are in Egypt. Stick with 20W-50. A 0W or 5W -anything, oil offers no benefit to you.

 

[kschachn]

What brands are available to you?

 

[Hassan]

Originally Posted by kschachn
What brands are available to you?


Amsoil SS 5w50 , Premium Protection 20W50 , OE 5w40 , XL 10W40

Castrol Magnetic 10w40

Shell Helix HX-5 15w50

 

[ammolab]

Originally Posted by Pelican
The bigger the gap the higher the shear, so in your case I'd stick with 20W50 or 15W50


Have OAs shown a problem with shear on 5W-50 oils? I ran Castrol 5W-50 in my BMW bike for 5000 miles. OA on that oil showed it was still a 50wt oil.

 

[userfriendly]

If cost is not an issue, try SAE 40 at $75 for a 5 gallon pail.

 

[Mad_Hatter]

Originally Posted by userfriendly
If cost is not an issue, try SAE 40 at $75 for a 5 gallon pail.


Being in Egypt I was wondering if he could get away with a mono grade. He's not under warranty anymore, soooo...

 

[addyguy]

Magnatec 10W-40 would be my choice. Seems to work really well for folks in Australia.

 

[CourierDriver]

Originally Posted by Hassan
guys i have accent lc 2002 1.5L with 100k Km the car manual indicates that the suitable oil is 20w50 , 15W50 (according to ambient temperature) , is there is any issue using 5w50 instead of the indicated viscosities ?


17 year old car?? It seems to be doing fine with whats in it...IMHO