Q: Is it okay to use 5w-20 in my 2004 buick lesabre

asked by on February 25, 2018

Is it safe to use 5w-20 oil in my engine?

My car has 223465 miles.
My car has an automatic transmission.

You can use 0W-30, 5W-30, and 10W-30. You cannot use 5W-20 oil in ANY operating conditions in this vehicle as the viscosity will be too low once the engine is warmed up. Page 5-15 of the LeSabre Owner’s Manual contains a discussion of engine oil requirements and allowed viscosities. The allowed use of 0W-30 in the LeSabre, and other vehicles, has developed in more recent years (since publication of the Owner’s Manual that I referred you to) and although 0W-30 is not referred to in the manual, the major oil manufacturers do recommend that viscosity. It is great for cold weather starting. Overall, you can use the 5W-30. Absolutely do not use 20 weight oil (5W-20, etc.) due to the potential for engine damage. If you desire that this maintenance be performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an engine oil/filter change and the responding mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

Was this answer helpful?
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

Get a quote

What others are asking

Battery replaced, fuel gauge stopped working

Hello. There are a couple of reasons that would cause the fuel gauge to stop working. The most common reason is that the fuel level sending unit has failed and is not accurately reading the fuel level. The fuel level...

Their is a hole in the Heater Box

If you are referring to the "heater core", which is the metal assembly under the dash that looks like a mini radiator and through which heated coolant flows, for your make and model that part costs anywhere from $75 to...

Can I have my jump starter plugged in to an outlet as if i was charging, then connect it to a batter and turn it on? Will that cha

If the vehicle battery happens to be more than 5 years (60 months) old, don't bother fooling with it. Buy a new battery and be sure the new battery is fully charged by the store before you install it, otherwise...

Related articles

A Buyer's Guide to the 2012 Buick Regal eAssist
Although Although a lot changed about the Buick Regal in 2012, the addition of a hybrid model was definitely the biggest head turner. Whether you want to do your part for the environment or simply save at the pump, this...
A Buyer’s Guide to the 2012 Buick Verano
The The 2012 Buick Verano is a near luxury sedan that is affordably priced with lots of technology and comfort that comes standard. The interior is covered in leather with a rich variety of colors. The legroom in the front...
The Best Used Cars to Buy for Towing Light Loads
Towing Towing is tricky business and depending on the weight you’re dealing with, it really determines what vehicle is best for you. If it’s light loads you’re looking at towing, we’ve put together a list of the top five cars...