I have a 99 Avalon with the infamous 1MZFE "sludger" engine. My OCI is 3k (about every 4-5 months). I have used Castrol GTX for decades. Based on what I have read here over the last few months, I am considering changing to PYB.
I looked at the 5 qt jug of PYB at Walmart yesterday. It claimed 40% sludge removal. Then I looked at the 1 qt bottle and it said 15% sludge removal. What's up with that?
Based on what I have read here, I have come to two conclusions:
1. At 3k OCI, it doesn't make any difference whether I use Castrol GTX or PYB.
2. Castrol GTX is an ok dino oil, but most people think PYB is better.
Have I made the right conclusions?
I have a couple qts of Castrol GTX left over from my last change. Can I mix it with PYB?
Thanks.
I looked at the 5 qt jug of PYB at Walmart yesterday. It claimed 40% sludge removal. Then I looked at the 1 qt bottle and it said 15% sludge removal. What's up with that?
Based on what I have read here, I have come to two conclusions:
1. At 3k OCI, it doesn't make any difference whether I use Castrol GTX or PYB.
2. Castrol GTX is an ok dino oil, but most people think PYB is better.
Have I made the right conclusions?
I have a couple qts of Castrol GTX left over from my last change. Can I mix it with PYB?
Thanks.
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