Hi /o/, i don't know anything about cars, so im hoping you

>>14799276
Nah its fine. If you had 4 quarts of 5w30 and a quart of higher viscosity, it'd blend and not be a big deal.

Pull the drain plug as soon as you can. The higher winter rating will cause your bearings to explode in warm weather

>asking 4chan for advice

>>14799276
as long as they are both the same type of oil, then you will be fine until the next oil change.

By type I mean synthetic or old-school dino oil.

If your not sure, it isn't the end of the world, but I would probably do an oil flush just to be safe if you don't know what you put in.

>>14799276
Dumb weeaboo

>>14799363
>>14799321
Thanks anons, I know they were both synthetic so I guess we're good then.

My car asks for 5w20 and I replaced it with 10w40 and it hasn't blown up yet so it's fine

It's fine

My truck calls for 5w-30 and I use Rotella 15w-40

>>14799401
It's not an instantaneous thing.

If it's an older car, that might honestly be a good thing for it. Or at least, it won't kill it.

>>14799443
It's a 2001 Chevrolet lumina. What do the oil names even mean?

>>14799325
wtf are you talking about?

My dad put heavier 10W-40 in our Honda in a bid to reduce oil burn. No problems for 50k miles. I went back to 5W-30 after taking ownership.

Motors aren't as sensitive to weight requirements when using Synthetic oil when compared to the old oil. It's pretty amazing just how far Synthetic oil has gotten in the past few years.