Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts
Castrol

Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts

$20.97$23.72★ 4.8(3,834 reviews)
Mubboo Score 6.2/10
  • Phosphorus Replacement Technology helps extend emission system life
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
  • Advanced additives that help prevent engine wear | Improved Fuel Economy**
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Mubboo Value Score: 6.2/10

Quality9.6/10
based on 4.8/5 customer rating
Popularity1.4/10
3,834 reviews, top 43% in Motor Oil
Value7.8/10
priced below 78% of Motor Oil

How it stacks up

Rated 4.8/5 — better than 81% of 58 Motor Oil we track. Budget-tier pricing at $20.97.

Head-to-Head vs Category Leader

CastrolMotul (Leader)
Price$20.97$69.96
Rating4.8/54.9/5
Reviews3,8347,632
Mubboo Score6.2/104.2/10

The Castrol GTX High Mileage 10W-40 Synthetic Blend offers comparable quality at 70% lower price.

Quick Specs

Size
5 Quarts
Unit Count
160.0 Fluid Ounces
Item Weight
0.01 Ounces
Manufacturer
Castrol
Model Number
1597C2
Liquid Volume
160 Fluid Ounces
Container Type
Bottle
Item Type Name
Motor Oil

What reviewers say

Synthesized from 40 reviews · 100% verified purchases.

For older engines, high-mileage oils like Valvoline MaxLife can help reduce leaks and noise. Compare final cost as Amazon purchases may not qualify for manufacturer rebates, and note Castrol EDGE’s eco-pack can be harder to pour than jugs.

Rating reliability

Well reviewed — reliable rating
🟢 Sold & shipped by Amazon

About Castrol

  • 51 products in our database
  • Average rating: 4.8/5 across all products
  • Price range: $12.99 – $91.74
  • Categories: Fuel Additives, Motor Oil

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Motul 8100 X-clean EFE 5W-30 Full Synthetic Motor Oil | Fuel Economy Formula, Helps Protect Emissions Systems, Clean Engine Performance | Long Drain Capable, Improved Engine Responsiveness | 5L
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Frequently Asked Questions

Is the Castrol Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Q worth buying in 2026?

It earns a Mubboo Score of 6.2/10, with a 4.8/5 rating from 3,834 reviews — better than 81% of Motor Oil we track.

How much does the Castrol Castrol GTX High Mileage 10W-40 Syntheti cost?

It is currently $20.97 — budget-tier pricing for Motor Oil.

How does it compare to the top-rated Motor Oil?

The Castrol GTX High Mileage 10W-40 Synthetic Blend offers comparable quality at 70% lower price.

Sources & References

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