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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EDGE High Mileage 10W-30 Advanced Full Synthetic Motor Oil, 1 Quart

EDGE High Mileage 10W-30 Advanced Full Synthetic Motor Oil, 1 Quart

Product ID: 33054838

Details

Brand
Castrol
Liquid Volume
1 Quarts
Package Information
Bottle
SAE J300 Viscosity Grade
0W-20
Vehicle Service Type
Car

⛽Improves fuel economy with advanced synthetic tech

🔥Reduces oil burn-off & power-robbing deposits

⚙️Titanium-strong formula for engines >75K miles

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VT6537

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Description

⚙️ Drive High Mileage Like a Pro — Engineered to Outperform & Outlast

LEAK DEPOSIT DEFENSE - Formulated to minimize leaks, oil burn-off, and power-robbing deposits, keeping your engine cleaner and smoother.
FUEL EFFICIENCY BOOSTER - Advanced synthetic formula improves fuel economy, saving you money while enhancing engine performance.
TITANIUM INFUSED STRENGTH - Boosted with fluid titanium technology to maximize oil film strength and reduce breakdown under pressure.
EMISSION SYSTEM PROTECTION - Phosphorus Replacement Technology safeguards your catalytic converter for longer-lasting emission control.
ENGINEERED FOR HIGH MILEAGE MASTERY - Specifically designed for vehicles with over 75,000 miles to extend engine life and performance.

Castrol EDGE High Mileage 10W-30 is a premium full synthetic motor oil tailored for vehicles with over 75,000 miles. Featuring titanium-boosted oil film strength and proprietary additives, it reduces leaks, oil burn-off, and harmful deposits while protecting emission systems and improving fuel economy. Trusted by drivers who demand peak performance and longevity from their high mileage engines.

Specifications

ASIN	B01CRYHNJC
Automotive Fit Type	Universal Fit
Best Sellers Rank	#18,381 in Automotive ( See Top 100 in Automotive ) #238 in Motor Oils
Brand	Castrol
Brand Name	Castrol
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.5 out of 5 stars 157 Reviews
Global Trade Identification Number	00079191261293
Included Components	1 Quart, Pack of 6 Motor Oil
Item Type Name	Motor Oil
Liquid Volume	1 Quarts
Manufacturer	Castrol
Manufacturer Part Number	15D47C-6pk
Manufacturer Warranty Description	12 Months
Model Number	15979B
Package Information	Bottle
SAE J300 Viscosity Grade	0W-20
Size	1 Quart
UPC	079191261293
Unit Count	32.0 Fluid Ounces
Vehicle Service Type	Car
Viscosity Level	Medium to High

Reviews

T**M

30.12.2025

D**E

7.05.2025

T**K

7.05.2024

A**R

2.07.2025

M**Y

28.05.2025

C**M

19.06.2025

R**1

18.06.2025

L**S

12.09.2024

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VT6537

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In stock

Sold byAmazon VanuatuDelivered 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 Vanuatu.

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