Why does buying a 6 pack cost $55 but buying 1 for $7.50 six times cost $45?

Because the single one is high mileage, not advanced synthetic.

is this oil suitable for gasoline engines with 200.000 km milage?

I'm sure it is. I have a 2004 Toyota Corolla with 100,000 miles on it. I have used various brands of fully synthetic oil in it from day 1. The car doesn't look as good as new, but the engine seems to still be performing like new.

I am seeing castrol edge 10w30 black quart and 10w30 gold quart with titanium. The gold quart is cheaper than the black. Which is better?

The 10w30 gold quart is extended performance. It should last longer in your engine before you need to change it.

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Castrol EDGE High Mileage 10W-40 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE High Mileage 10W-40 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Product ID: 492405450

Details

Brand
Castrol
Liquid volume
192 Fluid
Package information
Bottle
Vehicle service type
For vehicles
Viscosity
10W-40

⛽15,000 miles extended oil change interval

🔥Reduces leaks, burnoff & power-robbing deposits

🛡️Phosphorus Replacement Tech protects emission system

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$416.40

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Description

🛠️ Keep your high-mileage ride running like new — because your engine deserves the edge!

EMISSION SYSTEM GUARDIAN - Advanced Phosphorus Replacement Technology safeguards your catalytic converter
LONG LASTING PERFORMANCE - Drive worry-free up to 15,000 miles between oil changes
ENGINE EFFICIENCY BOOSTER - Minimizes leaks and power-robbing deposits for peak responsiveness
TAILORED FOR HIGH MILEAGE - Specifically engineered for vehicles with 75,000+ miles to extend engine life
TRUSTED SYNTHETIC FORMULA - Full synthetic 10W-40 oil meets or exceeds API SP/SN PLUS standards

Castrol EDGE High Mileage 10W-40 is a premium full synthetic motor oil designed for vehicles with over 75,000 miles. Featuring Phosphorus Replacement Technology, it protects the emission system while reducing leaks, oil burnoff, and deposits. With up to 15,000 miles between oil changes and compliance with API SP/SN PLUS standards, it delivers superior engine protection and performance for demanding drivers.

Specifications

ASIN	B01CRYHQEY
Automotive Fit Type	Universal Fit
Best Sellers Rank	#53,686 in Automotive ( See Top 100 in Automotive ) #622 in Automotive Oils
Brand	Castrol
Brand Name	Castrol
Compatible with Vehicle Type	For vehicles with over 75,000 miles
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 1,951 Reviews
Global Trade Identification Number	00079191061718, 00079191217108
Included Components	Motor Oil
Item Type Name	Motor Oil
Liquid Volume	192 Fluid Ounces
Liquid volume	192 Fluid Ounces
Manufacturer	Castrol
Manufacturer Part Number	15D53C-6pk
Model Number	15989F-6PK
Package information	Bottle
SAE J300 Viscosity Grade	10W-40
Size	1 Quart, Pack of 6
UPC	079191061718 079191217108
Unit Count	192 Milliliters
Vehicle service type	For vehicles with over 75,000 miles
Viscosity Level	Medium to High

Reviews

H**Z

Good oil

24.08.2025

D**A

LLEGO A TIEMPO Y BUENA CALIDAD

27.04.2026

T**M

Great

30.12.2025

B**B

Will buy again

31.12.2025

S**P

Arrived quickly, engine is happy with this oil

25.05.2025

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$416.40

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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