What is the Oil Return Hose all about?

Turbochargers offer a significant boost to the performance of small engines, allowing you to get “more bang for your buck.” However, they need a number of components in order to work correctly. The oil return hose ensures that your turbo stays lubricated during operation and that the used oil will return to the engine, where it will be filtered and recirculated. Though some oil return hoses are made of stainless steel or braided stainless steel, most are made of heat resistant rubber. The oil return hose is subject to temperatures well above 600 degrees fahrenheit during normal operation, and this figure is even higher during hard runs. Because temperature-induced wear and tear on the hose is significant, the hose will harden, dry and crack over time. They can be difficult to remove, and brittle hoses can break. If this happens during operation, oil will spray out of the hose, and the turbocharger (not to mention the engine) will be damaged from insufficient lubrication.

Keep in mind:

• Oil return hose condition should be assessed during basic maintenance.
• The most common types of damage for oil return hoses are cracking, bulging and buckling.

How it's done:

• The vehicle is lifted and supported on jack stands and the oil and filter removed
• The oil return hose is iremoved
• The new oil and filter is installed and vehicle is started and checked for leaks
• The vehicle is removed from jack stands
• The vehicle is started and checked for oil system operation

Our recommendation:

For both your engine and your turbocharger to operate correctly, they must be supplied with a constant stream of engine oil. If the engine oil return hose is damaged, serious consequences will result. Work with one of our expert mechanics, capable of keeping an eye on all of the hoses and belts under the hood during normal maintenance, to replace those hoses well before any issues become serious.

What common symptoms indicate you may need to replace the Oil Return Hose?

• Cracked rubber
• Bulges in the hose
• Brittle or hard feeling hose

How important is this service?

Without an operational oil return hose, both your turbocharger and engine will be compromised in the worst-case scenario. The best prevention method is to work with our experienced mechanics, who will provide ongoing maintenance. By conducting regular inspections, the mechanic will detect any signs of degradation on the oil return hose and replace it if necessary. If your hose is cracked, bulging or otherwise damaged, we recommend having it replaced immediately.