10W-30 Fluid Maintenance Kit – 1 Quart Bottle of 4T Castrol 10W-30 and 1 Fuel Stabilizer Bottle (10 Oz)

Use the specifications and images on this page together with your vehicle details. Match part number CTL_OPEK4_NTG-1 to your existing component or OEM interchange.

Explore similar Signature Brands to find the right fit for your car, truck, SUV, or powersports vehicle. See more Castrol products we carry.

10W-30 Fluid Maintenance Kit – 1 Quart Bottle of 4T Castrol 10W-30 and 1 Fuel Stabilizer Bottle (10 Oz) from Castrol is intended for normal automotive service and maintenance—such as brake pad and rotor service, oil and filter changes, or other listed applications—depending on how this SKU is categorized. Follow your owner’s manual and any torque or fluid specs printed on the packaging.

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This listing is an aftermarket replacement manufactured or branded by Castrol, engineered to meet or exceed typical OEM performance for the applications described. It is not necessarily a dealer-original part unless the description states otherwise.

Compare alternatives in Signature Brands if you need a different formulation, kit, or price point.

You receive the 10W-30 Fluid Maintenance Kit – 1 Quart Bottle of 4T Castrol 10W-30 and 1 Fuel Stabilizer Bottle (10 Oz) (SKU / part number CTL_OPEK4_NTG-1) as shown in the photos and bullet points. Kits may include filters, gaskets, hardware, or fluids; single components include only that item. Open the Specifications and Includes areas on this page to confirm quantity and contents.

Installation steps depend on the part type (for example, brake pads versus an oil change kit). Work on a cool vehicle, use proper jack stands and tools, torque fasteners to spec, and bed brakes or prime filters per the manufacturer’s instructions. If you are not experienced with suspension or brake work, use a licensed technician.

Find related service items in Signature Brands. You may also consider 10W-30 Fluid Maintenance Kit - 2 One-Quart Bottles 4T Castrol 10W-30 and 1 Fuel Stabilizer Bottle (10 Oz) or SAE 30 Fluid Maintenance Kit – 1 Quart Bottle of 4T Castrol SAE 30 and 1 Fuel Stabilizer Bottle (10 Oz).

New, uninstalled items are generally eligible for return within the time window posted in our store policies, provided they are in resalable condition. Reference your order and SKU CTL_OPEK4_NTG-1 when contacting support. Defective or incorrect shipments should be reported promptly with photos when possible.

Need a different fitment? Browse Signature Brands for other compatible options.

Many in-stock orders ship the same business day when placed before the warehouse cutoff. Transit usually takes about 2–5 business days in the contiguous U.S., depending on carrier and destination. Availability is shown near the add-to-cart button on this page.

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Cross-check year, make, model, engine, and trim with the fitment data on this page, your old part number, and SKU CTL_OPEK4_NTG-1. When in doubt, verify with a dealer parts catalog or qualified mechanic before opening packaging.

Similar listings: 10W-30 Fluid Maintenance Kit - 2 One-Quart Bottles 4T Castrol 10W-30 and 1 Fuel Stabilizer Bottle (10 Oz) and SAE 30 Fluid Maintenance Kit – 1 Quart Bottle of 4T Castrol SAE 30 and 1 Fuel Stabilizer Bottle (10 Oz). Explore the full Signature Brands category for oil change kits, brake parts, filters, and more.