Castrol Magnatec, no API donut

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Jul 13, 2025
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Philippines
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made in malaysia. castrol is reputable so this is ok to use right?

also what does "synthetic technology" mean here? group II ?
 
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Not a U.S. marketed product. ACEA A3/B4 So high HTHS Full saps lubricant which should make for a great HD all rounder.

The proof is in the running not parsing tech tidbits. Use with confidence. What engine again? You asked the forum to choose between two oils a few days ago, I guess this one came out ahead.

Magnetec = Great Product
ACEA A3/B4 Great oil spec.

What's the worry?
 
Castrol self-certifies that it meets API SP spec and I wouldn't hesitate to trust a company like Castrol. They aren't going to pay for the donut in countries that typically don't care about "American" specs though. I am surprised they don't list at least a JASO spec.
 
also what does "synthetic technology" mean here? group II ?
It means what they want it to mean. If I were to guess I would say it is a high(er) VI non-hydrocracked oil much like Chevron sells.

Technology improves, if you want an ACEA A3/B4 oil then go for it. That’s your marker of proven performance.
 
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