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Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts

★ 4.8 · 8,201 ratings
$41.94

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Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts, $41.94, Availability unknown. Image 1 of 11.

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Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts
SKU
JC2968
Explore product details ↓

Source specifications

Viscosity
5W 30 SAE Grade
Brand
Castrol
Liquid Volume
160 Fluid Ounces
Package Information
Bottle
Vehicle Service Type
For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs
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
‎079191231029
Automotive Fit Type
‎Universal Fit
Global Trade Identification Number
‎00079191231029
Manufacturer
‎Castrol
Size
‎5 Quarts
SAE J300 Viscosity Grade
‎5W-30
Model
‎03102
Item Weight
‎9.38 pounds
Product Dimensions
‎11.9 x 9.8 x 4.6 inches
Item model number
‎03102
Is Discontinued By Manufacturer
‎No
Manufacturer Part Number
‎03102C
ASIN
B00GSQ8MSC
Customer Reviews
4.8 4.8 out of 5 stars (8,201) 4.8 out of 5 stars
Best Sellers Rank
#564 in Automotive ( See Top 100 in Automotive ) #17 in Motor Oils
Date First Available
April 4, 2014

The details

About this item

Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle. 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**; Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications Rated 4.8 out of 5. Customers find this motor oil to be a top-grade product that works well for

  • 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**
  • Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

From the manufacturer

Product details and media

Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle.

Highlights: 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** Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

Key details: 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: ‎079191231029 | Automotive Fit Type: ‎Universal Fit | Global Trade Identification Number: ‎00079191231029 | Size: ‎5 Quarts | SAE J300 Viscosity Grade: ‎5W-30 | Model: ‎03102 | Item Weight: ‎9.38 pounds

How it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out.

Customer feedback: 4.8/5 average rating.

Customers say: Customers find this motor oil to be a top-grade product that works well for older vehicles, particularly high-mileage cars, with one customer noting it lasts over 160,000 miles.

Review snippets: Great price, fast shipping, arrived sealed. Best engine protection by far!! Read more / Best oil for my GF's high mileage car, good price. Read more

From the manufacturer High Mileage Motor Oils Castrol EDGE High Mileage, Castrol GTX Full Synthetic High Mileage and Castrol GTX High Mileage are specially formulated for vehicles with over 75,000 miles. They help extend engine life providing superior protection in 7 Critical Areas, including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. EMISSION SYSTEM PROTECTION Good news: most engine oils contain phosphorus to reduce engine wear. Not so good news: phosphorus is also harmful to your catalytic converter. But fear not, because Castrol high-mileage oils contain our exclusive Phosphorus Replacement Technology. They’re formulated to reduce phosphorus levels to protect the catalytic converter — and preserve the life of your emission system. WEAR PROTECTION When your engine’s pistons, rings and cylinder walls show signs of wear, it compromises combustion and reduces performance. Castrol motor oils provide robust protection to prevent metal-to-metal contact and reduce wear. CLEANLINESS It’s simple. A clean engine performs better. So Castrol motor oils reduce sludge and deposit buildup to keep engines cleaner. It’s critical to optimizing performance. CORROSION Water and acid are typically present in combustion engines but the key is limiting them. Water can cause metal parts to rust and acid can lead to corrosion. The additives in Castrol motor oils neutralize acids and displace water. That’s critical to help prevent corrosion — and maintain your engine’s performance. VOLATILITY This is often referred to as “burn off,” or an oil’s evaporation rate. The additives in Castrol motor oils help prevent burnoff and extend protection. Lesser oils can be more

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 1Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 2Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 3Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 4Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 5Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 6Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 7Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 8Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 9Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil 5 Quarts — product detail 10

Customer feedback

Customer ratings

4.8 out of 5

8,201 ratings

Customers find this motor oil to be a top-grade product that works well for older vehicles, particularly high-mileage cars, with one customer noting it lasts over 160,000 miles.

Ron@ElserPlumbing

5.0 out of 5 stars Best Engine Oil

Rating: 5

March 2, 2026

Verified purchase

Great price, fast shipping, arrived sealed. Best engine protection by far!! Read more

BB

5.0 out of 5 stars Castrol fanboy

Rating: 5

January 23, 2026

Verified purchase

Best oil for my GF's high mileage car, good price. Read more

Christopher Smith

5.0 out of 5 stars Great for foreign cars

Rating: 5

March 14, 2026

Verified purchase

Only stuff I use in 04 bmw Read more

Jim K.

5.0 out of 5 stars Quality oil, good price, quick delivery.

Rating: 5

January 17, 2026

Verified purchase

Great oil. Good price. Read more

LINDA MASSER

5.0 out of 5 stars Castrol GTX High Mileage

Rating: 5

March 1, 2026

Verified purchase

WORKS GOOD Read more

R. Reed

4.0 out of 5 stars Great price

Rating: 4

August 31, 2025

Verified purchase

Good quality oil. Read more

Kimmi Cooke

5.0 out of 5 stars Exactly as described

Rating: 5

February 9, 2026

Verified purchase

Money saver, will buy again. Read more

Edwuard wilquerson gil gil

5.0 out of 5 stars Excelente producto

Rating: 5

March 15, 2026

Verified purchase

Excelente Read more

Complete product information
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  "short_description": "Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle.",
  "about_this_item": "Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle. 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**; Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications Rated 4.8 out of 5. Customers find this motor oil to be a top-grade product that works well for",
  "long_description": "Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle.\n\nHighlights: 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** Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications\n\nKey details: 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: ‎079191231029 | Automotive Fit Type: ‎Universal Fit | Global Trade Identification Number: ‎00079191231029 | Size: ‎5 Quarts | SAE J300 Viscosity Grade: ‎5W-30 | Model: ‎03102 | Item Weight: ‎9.38 pounds\n\nHow it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out.\n\nCustomer feedback: 4.8/5 average rating.\n\nCustomers say: Customers find this motor oil to be a top-grade product that works well for older vehicles, particularly high-mileage cars, with one customer noting it lasts over 160,000 miles.\n\nReview snippets: Great price, fast shipping, arrived sealed. Best engine protection by far!! Read more / Best oil for my GF's high mileage car, good price. Read more\n\nFrom the manufacturer High Mileage Motor Oils Castrol EDGE High Mileage, Castrol GTX Full Synthetic High Mileage and Castrol GTX High Mileage are specially formulated for vehicles with over 75,000 miles. They help extend engine life providing superior protection in 7 Critical Areas, including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. EMISSION SYSTEM PROTECTION Good news: most engine oils contain phosphorus to reduce engine wear. Not so good news: phosphorus is also harmful to your catalytic converter. But fear not, because Castrol high-mileage oils contain our exclusive Phosphorus Replacement Technology. They’re formulated to reduce phosphorus levels to protect the catalytic converter — and preserve the life of your emission system. WEAR PROTECTION When your engine’s pistons, rings and cylinder walls show signs of wear, it compromises combustion and reduces performance. Castrol motor oils provide robust protection to prevent metal-to-metal contact and reduce wear. CLEANLINESS It’s simple. A clean engine performs better. So Castrol motor oils reduce sludge and deposit buildup to keep engines cleaner. It’s critical to optimizing performance. CORROSION Water and acid are typically present in combustion engines but the key is limiting them. Water can cause metal parts to rust and acid can lead to corrosion. The additives in Castrol motor oils neutralize acids and displace water. That’s critical to help prevent corrosion — and maintain your engine’s performance. VOLATILITY This is often referred to as “burn off,” or an oil’s evaporation rate. The additives in Castrol motor oils help prevent burnoff and extend protection. Lesser oils can be more",
  "long_description_blocks": [
    {
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      "text": "Castrol® GTX® High Mileage 5W-30 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle."
    },
    {
      "type": "p",
      "text": "Highlights: 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** Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications"
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      "text": "Key details: 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: ‎079191231029 | Automotive Fit Type: ‎Universal Fit | Global Trade Identification Number: ‎00079191231029 | Size: ‎5 Quarts | SAE J300 Viscosity Grade: ‎5W-30 | Model: ‎03102 | Item Weight: ‎9.38 pounds"
    },
    {
      "type": "p",
      "text": "How it fits your day: Use the key specs and highlights above to match it to your setup, space, or routine before you check out."
    },
    {
      "type": "p",
      "text": "Customer feedback: 4.8/5 average rating."
    },
    {
      "type": "p",
      "text": "Customers say: Customers find this motor oil to be a top-grade product that works well for older vehicles, particularly high-mileage cars, with one customer noting it lasts over 160,000 miles."
    },
    {
      "type": "p",
      "text": "Review snippets: Great price, fast shipping, arrived sealed. Best engine protection by far!! Read more / Best oil for my GF's high mileage car, good price. Read more"
    },
    {
      "type": "p",
      "text": "From the manufacturer High Mileage Motor Oils Castrol EDGE High Mileage, Castrol GTX Full Synthetic High Mileage and Castrol GTX High Mileage are specially formulated for vehicles with over 75,000 miles. They help extend engine life providing superior protection in 7 Critical Areas, including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. EMISSION SYSTEM PROTECTION Good news: most engine oils contain phosphorus to reduce engine wear. Not so good news: phosphorus is also harmful to your catalytic converter. But fear not, because Castrol high-mileage oils contain our exclusive Phosphorus Replacement Technology. They’re formulated to reduce phosphorus levels to protect the catalytic converter — and preserve the life of your emission system. WEAR PROTECTION When your engine’s pistons, rings and cylinder walls show signs of wear, it compromises combustion and reduces performance. Castrol motor oils provide robust protection to prevent metal-to-metal contact and reduce wear. CLEANLINESS It’s simple. A clean engine performs better. So Castrol motor oils reduce sludge and deposit buildup to keep engines cleaner. It’s critical to optimizing performance. CORROSION Water and acid are typically present in combustion engines but the key is limiting them. Water can cause metal parts to rust and acid can lead to corrosion. The additives in Castrol motor oils neutralize acids and displace water. That’s critical to help prevent corrosion — and maintain your engine’s performance. VOLATILITY This is often referred to as “burn off,” or an oil’s evaporation rate. The additives in Castrol motor oils help prevent burnoff and extend protection. Lesser oils can be more"
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