Is it ok to use 5w20 oil instead of 5w30? | TigerDroppings.com
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Philosoraptor
New Orleans Saints Fan
Member since Oct 2010
4523 posts

Is it ok to use 5w20 oil instead of 5w30?

Just wondering. One of my cars uses 6 quarts of 5w20 and the other uses 4 quarts of 5w30.

I'd like to just buy two 5 quarts jugs of 5w20, instead of buying an extra quart of 5w20 and not using a quart of 5w30.

TIA.


Chatagnier
New Orleans Saints Fan
Thibodaux
Member since Sep 2008
4234 posts

re: Is it ok to use 5w20 oil instead of 5w30?
Shouldn't hurt. I think the 2nd number is just the viscosity of the oil.


michaelb1100
LSU Fan
State of Confusion
Member since Aug 2007
3570 posts

re: Is it ok to use 5w20 oil instead of 5w30?
quote:

Shouldn't hurt. I think the 2nd number is just the viscosity of the oil.


Unless the warranty depends on the oil. I have a lifetime engine and power train and was told use manufacturers specs.


Philosoraptor
New Orleans Saints Fan
Member since Oct 2010
4523 posts

re: Is it ok to use 5w20 oil instead of 5w30?
quote:

Unless the warranty depends on the oil. I have a lifetime engine and power train and was told use manufacturers specs.


The one that suggests 5w30 is out of warranty already.


TBama93k
Alabama Fan
Member since Nov 2010
8056 posts

re: Is it ok to use 5w20 oil instead of 5w30?
yeah it will be fine


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HeadBusta4LSU
LSU Fan
Baton Rouge
Member since Aug 2007
10493 posts

re: Is it ok to use 5w20 oil instead of 5w30?
I wouldnt risk it over a couple of bucks


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michaelb1100
LSU Fan
State of Confusion
Member since Aug 2007
3570 posts

re: Is it ok to use 5w20 oil instead of 5w30?
Not going to hurt then.


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Boudreaux35
BR
Member since Sep 2007
9070 posts
Online

re: Is it ok to use 5w20 oil instead of 5w30?
The only concern I would have is that I would assume you are making the oil change now, right? In the heat of the summer....The 20W oil would be better in cooler climates or in the winter down here. Personally, down here, I'd go with 30W in both of them.


Philosoraptor
New Orleans Saints Fan
Member since Oct 2010
4523 posts

re: Is it ok to use 5w20 oil instead of 5w30?
quote:

The only concern I would have is that I would assume you are making the oil change now, right? In the heat of the summer....The 20W oil would be better in cooler climates or in the winter down here. Personally, down here, I'd go with 30W in both of them.


Woah there! Now you have me all confused.


ManstrationBR
LSU Fan
Baton Rouge
Member since Jun 2011
37 posts

re: Is it ok to use 5w20 oil instead of 5w30?
The 5W20 should be fine for both vehicles, it's more important to worry about the quality of the formula. Maybe go with either a synthetic blend or a full synthetic to give the best wear protection


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Lloyd Christmas
New Orleans Pelicans Fan
Baton Rouge
Member since Aug 2005
4144 posts

re: Is it ok to use 5w20 oil instead of 5w30?
disregarding warranties

I would do the 5w30 on both cars in the summer, and the 5w20 on both in the winter


Volvagia
LSU Fan
Baton Rouge
Member since Mar 2006
41663 posts

re: Is it ok to use 5w20 oil instead of 5w30?
quote:

Woah there! Now you have me all confused.



He is talking about the ambient temperature's influence on the viscosity.

It shouldn't matter, it will get pretty hot soon enough regardless from the engine temperature.


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Boudreaux35
BR
Member since Sep 2007
9070 posts
Online

re: Is it ok to use 5w20 oil instead of 5w30?
quote:

I would do the 5w30 on both cars in the summer, and the 5w20 on both in the winter


This....And being that we don't have extreme temps in the winter, 30W is fine then also. The 20W oil is preferred in climates where temperatures drop very low. Cold oil is more viscous/thick so at start up it makes the engine work harder.


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