Why do Chevy engines burn oil?

The alleged oil consumption causes low oil levels, insufficient lubricity and engine damage due to piston rings which don't maintain enough tension to keep oil in the crankcase.

Why does my Chevy burn oil?

Burning oil is often the result of worn out parts. For example, worn valve seals and/or piston rings could lead to your car burning oil. Both valve seals and piston rings work to keep engine oil out of the combustion chamber.

What can cause a 5.3 to burn oil?

One common problem seen in the 5.3-liter engine is a failure of the valve cover to seal, which can cause heavy oil burn. Depending on the wear-and-tear on your vehicles, you may be able to get away with having the rings cleaned and getting a replacement valve cover that will seal again.

Did GM fix the oil consumption?

Starting with some 2014 model vehicles, GM began implementing a Generation V Vortec 5300 engine which was redesigned to fix the excessive oil consumption of the Generation IV.

What does GM consider normal oil consumption?

In a tip sheet to fleet-vehicle operators, GM says normal consumption “can be in the range of one quart within 2,000 miles on a properly driven and maintained vehicle.” Other manufacturers say nothing in their owner's manuals about oil consumption — and if you ask what's “normal,” the answer you get may depend on whom ...

How to Fix a Car Engine that Burns Oil for 10 Bucks

Is there a class-action lawsuit against Chevrolet?

A class-action lawsuit has been filed against GM over problems with the 2.4L Ecotec four-cylinder engine offered in certain 2010 to 2017 model year Chevy, Buick and GMC vehicles.

Why is my car losing oil but no leak?

Why Is My Car Losing Oil? When a car mysteriously loses oil, there are usually two possible causes: either you've sprung a leak, or your engine is burning it away. Though you may not see any visible signs of leakage, less noticeable parts like a worn seal or leaky rings may be the culprit.

What is the best additive to stop oil burning?

What oil is best for a car that burns oil?

Will turning off AFM stop oil consumption?

When you eliminate the AFM system, the extra oil is no longer needed. Excess oil will be pushed out of the pressure relief valve into the oil pan. This will spray oil on the bottom of the cylinder walls which can cause oil burning, especially in high-rpm engines.

What causes high oil pressure in a Chevy truck?

One of the most common causes of high oil pressure is a blocked, damaged, or clogged oil filter. While this typically only happens when your oil filter is particularly old, but it can happen if something comes up and hits your oil filter while driving.

Why does 2013 Silverado burn oil?

The suit alleges the 5.3L V8 engines found in a number of 2010-2014 model year GM vehicles have flawed piston rings that don't maintain tension well enough to keep oil in the crankcase.

Why does my car run out of oil so fast?

There are three primary causes of a low oil level: leaks, attrition, and owner inattention. Oil leaks are common in older vehicles. As a car ages, so too do the engine's gaskets, seals, and other connections that prevent the oil from leaking.

Will seafoam help with burning oil?

The buildup of heavier varnish and carbon restrictions that cause rings to stick can be prevented by treating your engine oil with Sea Foam HIGH MILEAGE Motor Treatment 100 to 300 miles before each oil and filter change.

Does Lucas Oil Stabilizer help with oil consumption?

Lucas Oil Stabilizer is a 100% petroleum product formulated to eliminate dry starts and reduce friction, heat and wear in any type of engine. It allows motor oils a higher degree of lubricity which reduces oil consumption and operating temperatures.

Why do high mileage cars burn oil?

Why Is My Car Burning Through Oil So Fast? It is common for worn out parts to cause burning oil. Your car may burn oil if you have worn valve seals or piston rings. In the combustion chamber, valve seals and piston rings keep engine oil from entering.

What is the Chevy shudder?

General Motors alleges that the “Chevy Shake” is caused by 8-speed transmissions. The 8L45 and 8L90 transmissions allegedly cause significant shaking and shuddering in some SUVs and trucks. Sometimes, the shaking is so violent that drivers feel like they have been hit by other vehicles.

Why does Silverado shake?

The Reasons Behind the Chevy Shake

This lawsuit represents consumers that have experienced issues with defective 8L45 and 8L90 transmissions in Chevrolet, GMC, and Cadillac vehicles. The eight-speed transmission is said to have issues with the hydraulic system, which puts stress on the gears and wears them down.

Did GM fix the lifter problem?

So, far GM has not issued any national recalls. Luckily, it seems that the lifters problem does have a fix that is working. “When we can get the parts, it's a relatively quick repair and it's a one-and-done fix,” the anonymous dealership technician said.

What is the most common cause of excessive oil consumption?

Under normal operating conditions, excess oil consumption is generally a mechanical problem. In the majority of cases where oil consumption problems have been investigated, it usually turns out to be a leak issue – either the valve cover gasket is leaking, crankshaft seals leaking, or one of the main seals is leaking.

Do V8 engines burn oil?

According to the report, BMW 5 Series owners with V8 engines were “27 times as likely to suffer excessive oil consumption as owners of an average vehicle” and that “BMW outlines such consumption as part of its manufacturer specifications.” In an e-mailed statement, BMW spokesman Hector Arellano-Belloc said “BMW engines ...

What year 5.3 has AFM?

What caused this issue? The culprit for the excessive oil consumption issue lies with a defect in the 5.3-liter V8 engine. Back in 2007, GMC introduced a feature for its motors, called the active fuel management system, or AFM. The company implemented it to increase fuel economy, get better horsepower, and more torque.