Castrol vs Valvoline

Castrol Edge EP has a slight rotten egg smell to it. If you’re into sniffing farts, I’m not judging you, it might be a solid choice on that basis alone.

If you’ve forgiven Valvoline for getting rid of the awesome wide lid bottles, well shame on you.
 
I don't see much of a discount on either brand at this time, except for a few $$ off at Walmart. However, Valvoline currently offers $5/jug rebate whereas castrol only offers a chance to win a yeti cooler.

If money/sales are the determining factor, order two jugs of Quaker State from the walmart website (currently $20.xx vs $22.xx in store) and then submit thr $10 rebate. If money's not an issue, run HPL.
 
If you change your top-tier, major brand full synthetic engine oil at bi-monthly/3K intervals, is it even going to matter?
 
I looked at the thread...I don't get it. What does it show that keeps Valvoline on the avoid list? What was the experience you are referencing? It isn't EP either, his thread is about R&P.
I think what he is trying to say is that VRP is a great choice in your Subaru as @Glenda W. experience is that they become oil burners even with well regarded top tier off the shelf synthetics so she had to use VRP to fix that. With those results, why bother using something else for the same price?
 
I looked at the thread...I don't get it. What does it show that keeps Valvoline on the avoid list? What was the experience you are referencing? It isn't EP either, his thread is about R&P.
She developed an oil burning engine even with 5k OCIs with Valvoline EP. If you look at her oil change history in the first post, she lists what oils she used, and despite using a "good oil" available OTS, she still developed an oil burning engine.
 
She developed an oil burning engine even with 5k OCIs with Valvoline EP. If you look at her oil change history in the first post, she lists what oils she used, and despite using a "good oil" available OTS, she still developed an oil burning engine.
5K isn’t exactly a short interval when the OEM interval is 6 mo/6K on synthetic oil.

Plenty of people will make the argument that OEM interval is generally too long.
 
5K isn’t exactly a short interval when the OEM interval is 6 mo/6K on synthetic oil.

Plenty of people will make the argument that OEM interval is generally too long.
Even with short intervals, you are not guaranteed to leave no deposits or have less wear if the oil quality isn't sufficient.

Edit to add: here's a good explanation as to why. The light ends evaporate and leave deposits.
 
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The Valvoline quick lube spots are a separate company and American-owned. But as mentioned elsewhere, the Saudi owned (state controlled) Aramco bought the Valvoline lubricants company a while back.
And the Valvoline oil is still made in USA by Americans.

However, I think the OP just wanted to know the technical merits of the oils he asked about.
 
And the Valvoline oil is still made in USA by Americans.

However, I think the OP just wanted to know the technical merits of the oils he asked about.
Agree. And they have a big lab and other operations here as well, as featured in LSJ's videos. My reply was in response to someone mistaken that Valvoline (lubricants) is an American company.
 
Agree. And they have a big lab and other operations here as well, as featured in LSJ's videos. My reply was in response to someone mistaken that Valvoline (lubricants) is an American company.
Whose mistake is it again?

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