2018 Cadillac CT6 Plug-In Differentials
Keep Your 2018 Cadillac CT6 Plug-In in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2018 Cadillac CT6 Plug-In looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Differentials from Trusted Brands
Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Royal Purple. For example, Royal Purple Differentials start at just $41.99 with an average 4.8 star rating. With over 133 reviews and a solid 5 star average, you can shop with confidence knowing other Cadillac CT6 Plug-In owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2018 Cadillac CT6 Plug-In Differential at Advance Auto Parts is around $30.49, with a range that starts at $18.99 and goes up to $41.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart start at just $18.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Differential, don’t forget to check out other key components like 4WD Components and Drive Shafts and Axles. At Advance Auto Parts, we’re here to help you keep your 2018 Cadillac CT6 Plug-In in peak condition, inside and out.
Find Your Specific 2018 Cadillac CT6 Plug-In Differentials
Looking for the perfect Differential for your 2018 Cadillac CT6 Plug-In? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Cadillac CT6 Plug-In. Whether you’re driving a 2018 model or another popular model year like
2017, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.
Essential 2018 Cadillac CT6 Plug-In Differentials
Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)
from
$41.99
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.
Product Features:
See More
Product Features:
- Better wear protection
- Increased fuel efficiency
- Better protection of the expensive catalytic emission system
- Improved compatibility with fuels containing ethanol
- Superior corrosion protection
- Meets ILSAC GF-5 and Dexos1 performance requirements
Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)
from
$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.
Product Features:
See More
Product Features:
- FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
- EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
- REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
- MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
- MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
Popular 2018 Cadillac CT6 Plug-In Differentials Categories
Most Popular Differential Oil for 2018 Cadillac CT6 Plug-Ins
Enhance your 2018 Cadillac CT6 Plug-In with one of the 2 Differential Oil we have in stock, starting at just $18.99.
Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)
from
$41.99
Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.
Product Features:
See More
Product Features:
- Better wear protection
- Increased fuel efficiency
- Better protection of the expensive catalytic emission system
- Improved compatibility with fuels containing ethanol
- Superior corrosion protection
- Meets ILSAC GF-5 and Dexos1 performance requirements
Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)
from
$18.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.
Product Features:
See More
Product Features:
- FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
- EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
- REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
- MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
- MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360
Top-Rated Differential Brands For Your 2018 Cadillac CT6 Plug-In
When it comes to finding the perfect Differential for your 2018 Cadillac CT6 Plug-In, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Differential brands including Royal Purple, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $41.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2018 Cadillac CT6 Plug-In, providing peace of mind with parts that meet or exceed OEM standards.
Popular Royal Purple 2018 Cadillac CT6 Plug-In Differentials
If you’re looking for a top-quality Differential for your 2018 Cadillac CT6 Plug-In, Advance Auto Parts has exactly what you need with our selection of Royal Purple Differentials. We have 1 Royal Purple Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $41.99, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 2018 Cadillac CT6 Plug-In come highly rated, with over 133 customer reviews and an impressive average rating of 4.8 stars. Choosing a Royal Purple Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$41.99
(133)
High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart
“The best”
FAQs for 2018 Cadillac CT6 Plug-In Differentials
What are the best-selling Differentials for 2018 Cadillac CT6 Plug-Ins?
Out of 2 Differentials that fit 2018 Cadillac CT6 Plug-Ins, the following parts are the top sellers:
- Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (12507273) – $18.99
What’s the price range for 2018 Cadillac CT6 Plug-In Differentials?
The prices of Differentials for the 2018 Cadillac CT6 Plug-In range from $18.99 up to $41.99 for the most premium parts.
What is the average price of a Differential for a 2018 Cadillac CT6 Plug-In?
The average price for Differentials for the 2018 Cadillac CT6 Plug-In is $30.49. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.
What are the cheapest Differentials for my 2018 Cadillac CT6 Plug-In?
The cheapest 2018 Cadillac CT6 Plug-In Differentials we carry are:
- Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (12507273) – $18.99
- High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (11150912) – $41.99
Does Advance Auto Parts sell Differentials for any other 2018 Cadillac models?
Yes. We stock Differentials for 6 other popular 2018 Cadillac models. Some of the most popular are 2018 Escalade Differentials, 2018 Escalade ESV Differentials, 2018 CTS Differentials, 2018 XTS Differentials, and 2018 ATS Differentials.
What are the top-rated Differentials that fit the 2018 Cadillac CT6 Plug-In?
The one 2018 Cadillac CT6 Plug-In Differential we have in stock is the Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart. It costs $18.99.
What types of Differentials do you sell for my 2018 Cadillac CT6 Plug-In?
We currently have just 1 Differential in stock for a 2018 Cadillac CT6 Plug-In, and as of 11/2/25, it is a Differential Oil.
Can I get help with 2018 Cadillac CT6 Plug-In Differential orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Differentials and more.
What is your return policy for Cadillac CT6 Plug-In Differentials?
Advance Auto Parts keeps returns simple. For new Cadillac CT6 Plug-In Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.