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Robert
Robert, UK Qualified Car Technician
Category: Car
Satisfied Customers: 4368
Experience:  Fully qualified / self employed garage technician in the UK
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I've put 15w30/40 oil in my car instead of 5w30/40. Is this

Customer Question

I've put 15w30/40 oil in my car instead of 5w30/40. Is this a problem?
Submitted: 9 months ago.
Category: Car
Expert:  Robert replied 9 months ago.
Hi..there.. What Vehicle do you have including engine and year?
Customer: replied 9 months ago.
I have a Vauxhall Meriva 1.4. 57 plate. Please tell me it's not ruined!!
Expert:  Robert replied 9 months ago.
Hi..there.. Doubt it very much it would damage anything to be honest..the oil is the wrong grade as you know.but it certainly wouldnt cause any issue...if you've just topped up a little with the oil thats already in there then just leave it...if you done a full oil change..then my advice would be to drain it off and then put in the 5w/40..dont have to pull the oil filter off if you've changed it..just drop the oil and then put the drain plug back in - fill up with the 5w/40 upto the near the max mark on the dipstick..run the engine for a few seconds..turn off and then recheck level and adjust and top up a little if required..thats about it...if your unbale to this yourself..then a reputable garage could do this within half an hour
Customer: replied 9 months ago.
It wasn't a full oil change I just topped it up this morning. So you think it should be ok?
Expert:  Robert replied 9 months ago.
Yeah it'll be fine..If it was just topped up a little with it..
Customer: replied 9 months ago.
Thank you very much for your help
Expert:  Robert replied 9 months ago.
No problem..glad to help.... please dont forget to leave a rating before you log out..much appreciated..
Expert:  Robert replied 9 months ago.
,

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