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Select 5-Quart Mobil 1 Advanced Full Synthetic Motor Oil on sale for
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The New API SP Formula is better suited for the Direct Injection Engines that are Euro Spec'd.
See Lake Speed Jr's The Motor Oil Geek Youtube channel to learn more:
Oil Problem? When You Shouldn't Use MOBIL1 0W-40! [youtu.be]
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Dumb folks over there
I prefer this over the OEM recommended penzoil natural gas... That oil seems to burn up, always have to refill after 3k miles or so.
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Our community has rated this post as helpful. If you agree, why not thank Nothingworked
For instance one blend change (I think it was to SN) removed an anti-wear additive that was known to spoil catalysts when engines failed.
I was in the room when GM pitched their case for the change. Since catalysts were warranted long after the engines fell out of warranty.
Here is what a quick google tells me about the API SP:
API SP replaces API SN as the latest standard for gasoline engine oil, introducing advancements in engine protection, particularly against Low-Speed Pre-Ignition (LSPI) and timing chain wear. API SP also includes improvements in high-temperature deposit protection and sludge control.
Here's a more detailed breakdown of the changes:
1. LSPI Protection:
LSPI (Low-Speed Pre-Ignition) is a phenomenon that can cause engine damage in modern gasoline engines, especially those with direct injection.
API SP oils are specifically formulated to mitigate LSPI, a problem that was not as rigorously addressed in API SN.
This is achieved through the use of a detergent system with lower calcium and higher magnesium, according to Infineum Insight.
2. Timing Chain Wear Protection:
API SP includes a chain wear test to ensure adequate protection for timing chains, which are crucial for engine operation.
This is particularly important for modern engines with direct injection and turbocharging systems.
3. Other Performance Enhancements:
API SP offers improved high-temperature deposit protection for pistons and turbochargers.
It also includes more stringent sludge and varnish control.
API SP contributes to better fuel economy retention and overall engine durability.
It also enhances emission control system protection and protects engines operating on ethanol-containing fuels up to E85.
4. Backward Compatibility:
API SP is backward compatible with older API SN, SM, SL, and SJ categories.
This means you can use API SP oil in vehicles that require older API SN or SN Plus specifications.
Dumb folks over there
Have a few on the shelf, but getting ready for a restock as I have a few rigs that use 0W-40.
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