Q: Is it okay to add conventional motor oil to synthetic oil in the car already?
I have some synthetic oil in the reservoir already but I can't find any in stores to top off. Is it ok to add conventional oil or will this damage the vehicle?
My car has 130000 miles.
My car has an automatic transmission.
Recommended Services
| Change Oil and Filter | $103.58 - $181.08 | Get a Quote |
Hi there. Mixing oils of conventional and synthetic types will not cause any problems at all as long as you are using the correct weight oils for the engine. Mixing the oil is better than running the engine low on oil. Just remember that you should get the oil and filter changed as if you used regular conventional oil until you have all synthetic oil again.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Front window won't roll up
If the window goes down but not up, the problem could be the window regulator or switch. If it doesn't move in either direction the problem could be the window motor or switch. A technician, such as one from YourMechanic,...
Shakes at 60+
Bad inner constant-velocity (C/V) joints can give you vibrations while accelerating. When they are worn, they can vibrate under load (accelerating). Tire balancing could cause vibration while accelerating, maintaining speed, and coasting, and is less likely to be the issue....
Does not always work. Can play with ignition and sometimes will work.
If your ignition switch (https://www.yourmechanic.com/services/ignition-switch-replacement) is malfunctioning, I would recommend having it tested and replaced if necessary. It is important to have this job performed professionally to avoid any potential mistakes. Sometimes ignition switches have many small pieces called tumblers...
Oil leak on the hose which came form valve cover to air intake . Engine is new and recently worked on.
Hi there. By looking at the photos that you have provided is shows that the PCV (positive crankcase ventilation) valve is blowing by and causing engine oil to go through the PCV tube. Since your engine has a turbo on...
Powertrain warning lamp.
Hello. The powertrain warning light, commonly referred to as the check engine light can come on for many reasons. If the engine computer detects an issue with the engine management, fuel, ignition, or emissions systems, it will set off the...
when i brake on my 2008 550i bmw it sounds like a grinding noise in the rear around the middle. Do you know what it could be?.
Grinding, squealing, or other "noise" on braking is usually related to a brake pad/rotor contact problem. These surfaces "mate" when you apply the brakes and if there is scoring on the rotor, rust, dirt, irregular wear on pad or rotor,...
Engine stalls sometimes but not all the time
Hello, Unfortunately, without additional information as to the make, model and year of your motorcycle it may not be possible to suggest what may be causing it to stall. Depending on whether or not it is fuel injected, or not...
Tow start an auto trans fwd ?
Hi there. In short - no, you can't "bump start" and automatic transmission powered vehicle. This only works with a clutch, manual transmission - as the clutch and engage the flywheel and ignition system slowly and progressively. By "dumping" the...
Leak detection pump location?
Hi there. You are probably going to spend more time, effort and trouble trying to replace this component on your BMW than it would be worth - especially if you're planning on trading the vehicle in to a new purchase....
Related articles
How to Check Your Oil
Changing engine oil is an important part of basic car care. Check motor oil on the dipstick to know if you need to add oil to your engine.
A Buyer’s Guide to the 2012 Suzuki SX4
The The 2012 Suzuki SX4 delivers all-wheel drive in a compact hatch, and provides plenty of space and features considering its ultra-low price tag. While there are plenty of updated options available in this vehicle class, the SX4 Crossover model...
The Top 5 Selling Cars in Alaska in 2012
Alaska Alaska requires a different kind of vehicle to handle both the terrain and the wintery conditions. While some of the most popular options for the Alaskan terrain in previous years included options such as the Subaru Forester and the...
Browse other content
Cities
Services