what happens when you put the wrong oil in your car?

Question

I have a 1997 Mazda 626 with 150,000 miles on it. I accidentally added 5W-30 oil when it requires 10W-30 oil. Will this harm my engine if I don't change it immediately? I'm considering waiting until next weekend to change it, but I'll be driving approximately 100 miles in that time, commuting 20 miles each day. I live in Los Angeles, CA. I appreciate any advice you can provide. Thank you!

Anonymous · Accepted Answer

I have my own oil shop and no it’s not bad the numbers are just the weight of the oil and since u have alot of miles on your car it’s best to use maxlife it’s for cars with alot of mileage on it that’s what I use on my truck..and your car will be fine

Anonymous · Answer

Wrong Oil In Car

Anonymous · Answer

No, it will be fine and you can safely leave it in until the next oil change is due.  There is no need to change it.  When a maker recommends a particular grade of oil it is, presumably, because that was the grade that they found suited a particular engine the best. That does not mean that other oils are bad for it.  On a 6 year old Mazda a change of 1 grade will not matter an iota.

Anonymous · Answer

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RE:
what happens when you put the wrong oil in your car?
I have a 1997 Mazda 626 with 150k in miles. I added 5w30 oil when it should have 10w30 oil. Will I harm my engine if I don’t change it immediately? I was hoping to wait until next weekend to change it but I will drive approximately 100 miles between now & then just commuting to work (20 miles…

Hershel Goyette · Answer

Petroleum based oil is definitely not a good choice but you don&rsquo;t need to worry until your next oil change. Just remember to keep some that&rsquo;s left over for when you need to add a bit between oil changes.

Anonymous · Answer

According to the mobil1 website, both Mazda engines in the 1997 4 and V-6 engines in a 626 are supposed to have 5W-30 in the crankcase year round.

Dr. Cassie Medhurst IV · Answer

Forget about it. Get the right oil next time.

Anonymous · Answer

nothing serious at all i change my oil around from season to season… it is safe to change it in 3000 miles

Anonymous · Answer

Won’t hurt it, just use the right kind next time

Anonymous · Answer

it won,t hurt it one bit ! both 5w30 and 10w30 turns into 30 weight anyway after it gets warmed up !

Prof. Nicholas Beahan

what happens when you put the wrong oil in your car?

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