Oils, Fluids and Sealer› Oils, Fluids and Additives

Liqui Moly

Pro-Line Engine Flush

$239.99

SKU: LM2037

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Liqui Moly Pro-Line Engine Flush is a highly effective detergent additive designed to clean the interior of 4-stroke gasoline and diesel engines before an oil change. It removes deposits and residues, dissolving sludge and isolating contaminants. This flush improves the combustion process, restores full engine performance, prevents corrosion, and recovers the oil's lubricating properties.
Show original supplier description
The Liqui Moly Pro-Line Engine Flush is a highly effective solution for cleaning the interior of 4-stroke gasoline and diesel engines prior to an oil change. Its potent detergent additives work to remove stubborn deposits and residues, breaking down sludge and isolating both solid particles and liquid contaminants within the engine. It actively prevents corrosion on unprotected metal surfaces and helps to recover the oil's original lubricating properties. The formula is economical, offers gentle cleaning, and is safe for use with turbochargers and catalytic converters. It is also suitable for diesel particulate filters and does not attack common sealing materials. To use, one 500 ml can is sufficient for up to 5 liters of engine oil. Add the Pro-Line Engine Flush to the engine oil when it is at running temperature, before the scheduled oil change. Allow the engine to idle for approximately 10 to 15 minutes, depending on the level of contamination. Afterward, proceed with changing the oil and the oil filter. Pro Line Engine Flush is compatible with all commercially available engine oils, but a minimum oil filling of 3 liters is required for effective product performance. Note: This product is not suitable for use on motorbikes with wet clutches.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandLiqui Moly
Part NumberLM2037
CategoryOils, Fluids and Sealer

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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