CastrolGtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6

CastrolGtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6

Q: What is the rated mileage for this?

I don't think oil is rated, the engine it goes in is but synthetic oil will last longer than regular oil.

Q: Is it ok to top off regular oil with some of this oil as needed for a slow oil leak?

I have a beater that i use for grocery shopping and Dr appts. It burns oil possibly worn valve guide seals. A friend told me to use synthetic or high mileage and it should help a little. Since i burn about a quart a month ive used everything from this to little known brands. My car still runs fine, passes inspection, no check engine. Oh by the way using a synthetic or a high mileage did cut down on oil consumption.

Product ID: 2526360

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Details

Viscosity
5W-30
Brand
Castrol
Vehicle Service Type
For use in 75
UPC
079191064405
Automotive Fit Type
Universal Fit

⛽Improved Fuel Economy Boost

🛡️Advanced Engine Wear Protection

🛢️5W-30 Synthetic Blend Viscosity

Frequently Bought Together

Castrol Gtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6

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FRAM Extra Guard PH3506, 10K Mile Change Automotive Replacement Interval Spin-On Engine Oil Filter for Select Vehicle Models

Description

🛢️ Keep your high-mileage engine young, efficient, and leak-free with Castrol GTX High Mileage!

SLUDGE FIGHTER - Superior dispersancy formula actively combats sludge buildup for a cleaner engine.
FUEL ECONOMY ENHANCER - Formulated to improve fuel efficiency, saving you money on every mile.
ENGINEERED FOR LONGEVITY - Phosphorus Replacement Technology extends emission system life and protects catalytic converters.
LEAK REDUCING SEAL CONDITIONERS - Advanced seal conditioners help minimize leaks, keeping your engine tight and efficient.
BURN OFF PROTECTION BEYOND INDUSTRY STANDARDS - Exceptional oil burn-off resistance means longer-lasting performance and less frequent top-ups.

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil is specially formulated for vehicles with over 75,000 miles. Featuring Phosphorus Replacement Technology, it protects emission systems and catalytic converters while fighting sludge and engine wear. This pack of six 1-quart bottles offers superior burn-off protection and improved fuel economy, meeting or exceeding API SP/SN PLUS and ILSAC GF-6 standards for reliable, long-lasting engine care.

Specifications

Viscosity	5W-30 sae_grade
Brand	Castrol
Vehicle Service Type	For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs
UPC	079191064405
Automotive Fit Type	Universal Fit
Global Trade Identification Number	00079191064405
Manufacturer	Castrol
Size	1 Quart, Pack of 6
Model	06440
Item Weight	11.9 pounds
Package Dimensions	9.6 x 9.29 x 7.7 inches
Item model number	06440
Is Discontinued By Manufacturer	No
Manufacturer Part Number	06440

Have a Question? See What Others Asked

What is the rated mileage for this?

is this only one 1 quart bottle or six 1 quart bottles?

Does this product includes filter?

Is it ok to top off regular oil with some of this oil as needed for a slow oil leak?

Reviews

D**R

Exactly what I was looking for!

Great product and value for the money!

25.08.2025

A**R

Great price

Great product

24.08.2025

S**N

Great product

Good to keep on hand. My husband has a small pl leak so this is great to have

12.09.2025

U**I

Great

Reasonable price . Working great . Thanks

2.09.2025

Z**G

great product

4.09.2025

R**D

Great price

Good quality oil.

31.08.2025

M**S

Solid oil, great price

I run this in my 20 year old Lexus GX. Engine runs smoothly, and the oil always comes out looking good. Change it every 5k. Doesn’t burn any between changes. The 3 jug box can be had for $55 during certain promotions. Excellent buy.

17.06.2025

R**K

Price

Great deal great price.

15.08.2025

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