Would this be good for a yong heng 4500 psi compressor ?

It's mineral oil based but it's got some petroleum additives which are bad/toxic to breath if you doing scuba filling. I would use it for gun air stuff-I use mineral based oil for all my air gun, tool, compressor stuff. I would use this for gun compressors but my gun compressor is that oil free box compressor.

Is it full syenthetic?

I love this stuff!!! It's ice for my compressors. I do a few fills and drains to get a nice clean crankcase fill up. It looks, feels, behaves, smells like natural mineral oil with synthetic stuff. Mobil says it mineral oil based.

It's 30 and it says it somewhere-it also pours like 30+.

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MOBIL RARUS 427 Compressor Oil

Product ID: 15304881

Details

Brand
Mobil
Item Weight
1.85 Pounds
Liquid Volume
32 Fluid
Material
Synthetic
Package Information
Bottle

🔥480°F flash point ensures high-heat stability

⚙️100 viscosity for optimal compressor performance

🇺🇸Proudly made in the USA for trusted quality

S$28

Duties & taxes included

In stock

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Description

⚙️ Keep your compressor running cooler, cleaner, and longer with MOBIL RARUS 427!

TRUSTED BY PROFESSIONALS - Highly rated with 4.8 stars from 312 users who demand reliability
CLEANER OPERATION GUARANTEED - Reduces downstream deposits for smoother, more efficient performance
SUPERIOR WEAR TEAR DEFENSE - Mineral oil base minimizes equipment damage and extends compressor life
COMPACT CONVENIENT PACKAGING - 32 fl oz bottle designed for easy handling and precise application
ENGINEERED FOR EXTREME CONDITIONS - Delivers premium protection from mild to severe compressor environments

MOBIL RARUS 427 Compressor Oil is a premium synthetic lubricant designed to protect air compressors under a wide range of operating conditions. With a high 480°F flash point and 100 viscosity rating, it minimizes wear and downstream deposits, ensuring reliable, long-lasting compressor performance. Made in the USA and trusted by professionals, this 32 fl oz bottle offers a perfect balance of durability and convenience for automotive and truck maintenance.

Specifications

ASIN	B00A6YB1YE
Best Sellers Rank	#27,432 in Automotive ( See Top 100 in Automotive ) #176 in Keychains
Brand Name	Mobil
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (312)
Flash Point	480 Degrees Fahrenheit
Global Trade Identification Number	00071924448933
Included Components	Unit^Instruction Guide
Item Form	Oil
Item Type Name	Automotive Accessories
Item Weight	1.85 Pounds
Liquid Volume	32 Fluid Ounces
Manufacturer	MOBIL
Material	Synthetic
Model Number	100870
Number of Items	1
Part Number	100870
Recommended Uses For Product	Auto
UPC	094703158991 071924448933
Unit Count	32.0 Fluid Ounces
Viscosity	100
Warranty Description	1 year manufacturer

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