How often does a GMC need an oil change?
GM recommends that an oil change should be completed within two fuel tank fill-ups from when the first message was displayed, or within 600 miles. Additionally, GMC vehicles – like most other vehicles – require an oil change at least once a year, whether the vehicle is seldom driven in short distances, or is a Garage Queen.
Where does the oil go in a small block Chevy?
It sucks oil out of the pan and pushes it into the oil filter. From there, oil goes through internal passageways in the block and crankshaft to lubricate the crank and rod bearings, is sprayed on the cylinder walls to lubricate them, and is sent up to the head to oil the valve train.
What kind of oil do I need for my Chevy 350?
Tiny dirt particles between 10 and 20 microns do much of the damage to bearings, cylinders and other moving engine parts by rubbing and causing wear. For the Chevy 350, oil filters from brands like Delco and Fram are recommended because they carry the society of American Engineers, or SAE, seal of approval.
How does the GMC oil life system work?
The GMC Oil Life System (OLS) system is not a simple oil quality sensor, but a software-based, algorithm-driven device that takes into account various operating conditions of the engine to determine when the oil needs changing.
Why does my GMC pickup truck use so much oil?
The AFM system, which disables some of the engine’s cylinders at lower RPMs to reduce fuel use, is the most common cause of this issue. While the system accomplishes this, it also leads to oil use problems. Some drivers have reported using as much as a quart of oil every 1,000 miles.
How long does GMC engine have to be off to check oil level?
If unable to wait two hours, the engine must be off for at least 15 minutes if the engine is warm, or at least 30 minutes if the engine is not warm. Always consult your GMC vehicle Owner’s Manual for the proper procedure to check your oil level.
How does the GMC engine oil life system work?
Most GMC vehicles are equipped with the engine Oil Life System (OLS). This system interprets your vehicle’s speed and engine temperature and continuously monitors operating conditions—which helps determine when it’s time for an oil and filter change.
Why does my Silverado lifter burn so much oil?
Engines with AFM use a high-volume oil pump. 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.