2003 Cadillac CTS Gear Oil

Your 2003 Cadillac CTS might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Gear Oil you desperately need.

We currently carry 6 Gear Oil to choose from for your 2003 Cadillac CTS, and our inventory prices range from as little as $11.79 up to $71.99.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Gear Oil for the 2003 Cadillac CTS. We only sell parts from trusted brands like Mobil Oil so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 1,998 reviews on our Gear Oil for the 2003 Cadillac CTS from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Gear Oil stock in-person!

Gear Oil for Your 2003 Cadillac CTS

Mobil 1 – 10W-30 High Mileage Full Synthetic Motor Oil, 1 Quart (Part No.14992)

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

from

$12.49
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 0W-20. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) Mobil 1 helps to keep your engine running at lower temperatures (2) and is proven to cool engine temperatures by over 10%. (3) Mobil 1 High Mileage full-synthetic motor oil 10W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is America’s No. 1 selling synthetic motor oil brand at retail, (4) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing¿results may vary. (4) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:
  • Mobil 1 High Mileage full-synthetic motor oil 10W-30 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.(1)
  • Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Manufacturer Part Number: 103535
  • Extended Engine Life: This high mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes.
  • Temperature Control: Proven to cool engine temperatures by over 10%, Mobil 1 helps to keep your engine running at lower temperatures compared to conventional oil.
  • Oxidation Control: Mobil 1 High Mileage full-synthetic motor oil helps control oxidation to prevent oil breakdown, ensuring long-lasting performance and protection.
  • Versatile Compatibility: Recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines.
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Mobil 1 – Advanced 10W-30 Full Synthetic Motor Oil: Protection for 10K miles, 1 Quart (Part No.24811)

Advanced 10W-30 Full Synthetic Motor Oil: Protection for 10K miles, 1 Quart

from

$11.99
Mobil 1 advanced full synthetic motor oil 10W-30 helps to extend engine life for vehicles of all ages. Mobil 1 advanced synthetic motor oil is designed to deliver outstanding engine protection from the five factors that can damage engines over time and protect critical engine parts for up to 10,000 miles between oil changes (1) . Its uniform synthetic oil molecules reduce friction, helping to prevent deposits and sludge buildup. Mobil 1 helps to keep your engine running at lower temperatures. (2) This technologically advanced motor oil is proven to cool engine temperatures by over 10%. (3) Its formulation provides excellent internal engine heat protection (up to 500 degrees Fahrenheit), and low-temperature protection (to -30 degrees Fahrenheit), supporting quick cold-weather starting and ultra-fast protection. Mobil 1 advanced full synthetic motor oil meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 advanced full synthetic motor oil 10W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern vehicles, including high-performance turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America¿s leading synthetic motor oil brand at retail¿, recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing, results may vary. (4) Source: The NPD Group/Retail Tracking Service/Dollar Sales/PCMO Full Synthetic/52 weeks ending September 30, 2023.)

Product Features:
  • Mobil 1 advanced full-synthetic motor oil 10W-30 utilizes Mobil 1¿s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
  • Mobil 1 advanced full-synthetic motor oil 10W-30 utilizes Mobil 1┐s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
  • Helps protect critical engine parts for up to 10,000 miles between oil changes,(1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Manufacturer Part Number: 122319
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Pennzoil – Platinum 10W-30 High Mileage Full Synthetic Motor Oil, 5 Quart (Part No.550045274)

Platinum 10W-30 High Mileage Full Synthetic Motor Oil, 5 Quart

from

$37.99
Pennzoil Platinum High Mileage SAE 10W-30 is a full synthetic motor oil that is uniquely engineered from our revolutionary PurePlus gas-to-liquid technology which is a patented process that converts pure natural gas into a high quality, full synthetic base oil. Because it is made from natural gas, the base oil is 99.5% pure, contains fewer impurities than base oils made from crude oil, and when combined with our advanced additive technology, creates one of the best formulations in our Pennzoil high mileage portfolio. As your car ages, leaks may develop and cause higher oil consumption and burn off, potentially causing your engine to need frequent top-offs. Pennzoil Platinum High Mileage motor oil is enhanced with an excellent combination of special conditioning seal agents and additives to help stop leaks from seals and reduce the oil consumption that is typical of older and worn engines. Our full synthetic high mileage motor oil also protects engines for loss of horsepower, offers excellent performance in extreme temperatures, and provides unsurpassed wear protection, and protection against abnormal combustion phenomenon like low-speed pre-ignition observed in modern turbocharged gasoline direct injection (TGDI) engines. Pennzoil Platinum High Mileage SAE 10W-30 is engineered to help keep engines clean by gently lifting deposits and keeping them away from critical moving engine parts In fact, it keeps pistons up to 50% cleaner than the toughest industry standards.

Product Features:
  • Designed for for vehicles with over 75,000 miles
  • Pennzoil Platinum High Mileage 10W-30 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results)
  • No other leading high mileage motor oil provides better protection from friction (Based on Sequence IVA wear test using SAE 5W-30)
  • Formulated to deliver less oil burn off than high mileage motor oils made from crude oil
  • Helps protect engines from loss of horsepower
  • Provides faster low-temperature oil flow and protects in extreme heat
  • Revolutionary PurePlus Technology: Engineered from Pennzoil’s patented PurePlus gas-to-liquid technology, converting pure natural gas into high-quality, full synthetic base oil that is 99.5% pure.
  • Enhanced Leak Protection: Contains special conditioning seal agents and additives designed to help stop leaks from seals and reduce oil consumption in older and worn engines.
  • Advanced Protection for Modern Engines: Protects against abnormal combustion phenomena like low-speed pre-ignition observed in modern turbocharged gasoline direct injection (TGDI) engines, helping to maintain engine performance and efficiency.
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Quaker State – 10W-30 High Mileage Synthetic Blend Motor Oil, Reduces Engine Wear, 5 Quart (Part No.550044937)

10W-30 High Mileage Synthetic Blend Motor Oil, Reduces Engine Wear, 5 Quart

from

$27.99
Quaker State High Mileage 10W-30 motor oil is a synthetic blend motor oil formulated for engines with over 75,000 miles. It helps reduce engine wear (compared to industry standard Sequence IVA), as anti-wear additives in Quaker State High Mileage motor oil help protect against wear that high mileage engines experience in everyday driving. Active seal conditioning agents help keep seals pliable to prevent leaks and oil loss. Advanced thermal and oxidative stability help reduce oil burn-off and maximize power output. Quaker State High Mileage 10W-30 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; GM 6094M. It exceeds the requirements of the following industry specifications: API SP, API SP-Resource Conserving, API SN Plus and all previous categories; ILSAC GF-6a and all previous ILSAC standards. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual.

Product Features:
  • Synthetic blend High Mileage 10W-30 engine oil specially formulated for new or late model SUVs, light vans and trucks, and passenger cars
  • Delivers protection for vehicles with over 75,000 miles
  • Helps stop leaks and reduces oil consumption in worn engines.
  • Active seal conditioning agents help keep seals pliable to prevent leaks and oil loss
  • Reduces engine wear and combats sludge and deposits
  • Advanced thermal and oxidative stability to help reduce oil burn-off and maximize power output
  • Formulated to exceed industry specifications: ILSAC GF-6A, API SP/SP-Resource Conserving and all previous categories
  • Meets and Exceeds OEM Requirements: Complies with Chrysler MS-6395 and GM 6094M requirements, and exceeds API SP, API SP-Resource Conserving, API SN Plus, and ILSAC GF-6a standards.
  • Anti-Wear Additives: Enhanced with anti-wear additives to provide superior protection against wear, ensuring longevity and reliability for high mileage engines.
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Idemitsu – Type TLS Automatic Transmission Fluid – 1 qt (Part No.10106-042K)

Type TLS Automatic Transmission Fluid - 1 qt

from

$11.79
Formulated to meet the specific requirements of Toyota, Lexus, and scion vehicles equipped with conventional (non-CVT) transmissions that require the use of ATF T-IV. Recommended for service-fill in all Toyota, Lexus, and Scion automatic transmissions where ATF T-IV is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. IDEMITSU is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. IDEMITSU application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:
  • Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
  • Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
  • Provides superior cleanliness, maintaining the transmission free of sludge and varnish deposits
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
  • Advanced anti-wear technology provides maximum protection to gears and bearings
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
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Mobil 1 – Advanced Full Synthetic Motor Oil 5W-30, 12 Quart (Part No.125222)

Advanced Full Synthetic Motor Oil 5W-30, 12 Quart

from

$71.99
Whatever you are driving, wherever you are going, you can trust your car to get you there when you use Mobil 1 advanced full-synthetic motor oil 5W-30. Mobil 1 advanced synthetic motor oil utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup , keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) This technologically advanced motor oil formulation provides 10X (2) better internal engine heat protection than industry standards (up to 500 degrees Fahrenheit), as well as exceptional low-temperature protection (to -30 degrees Fahrenheit) , bringing quick cold-weather starting and ultra-fast protection to your engine. Mobil 1 advanced full-synthetic motor oil meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 advanced full-synthetic motor oil 5W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks , including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is Americas#1 selling synthetic motor oil brand at retail, (3) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Based on Seq IIIH vs industry limits. (3) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending July 1, 2023)

Product Features:
  • Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
  • Helps protect critical engine parts for up to 10,000 miles between oil changes,(1) controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
  • Manufacturer Part Number: 125222
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FAQs for 2003 Cadillac CTS Gear Oil

What are the most popular Gear Oil for the 2003 Cadillac CTS?

With 4 brands you can trust, our most popular Gear Oil for the 2003 Cadillac CTS parts are:

What are the best aftermarket Gear Oil for the 2003 Cadillac CTS?

See what past customers had to say about our highest-rated Gear Oil for the 2003 Cadillac CTS:
10W-30 High Mileage Synthetic Blend Motor Oil, Reduces Engine Wear, 5 Quart
from $27.99
(363)
10W-30 High Mileage Synthetic Blend Motor Oil, Reduces Engine Wear, 5 Quart
“The oil is good for tge pistons n it also a good thing because u can feel the difference when you really wana go fast”
Type TLS Automatic Transmission Fluid - 1 qt
from $11.79
(2)
Type TLS Automatic Transmission Fluid – 1 qt
“Good product. Will buy again.”