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I have a 4 mth old 1.8 Honda Civic, living in Germany...

Also can anyone explain what both sets of numbers mean?

2007-03-25 06:39:54 · 7 answers · asked by Anonymous in Cars & Transportation Maintenance & Repairs

7 answers

no, dont worry about it.its just lighter oil,thats all.when you get the extra money just change it.you wont have to change the filter again.

2007-03-25 06:45:38 · answer #1 · answered by Anonymous · 0 1

Definately check with a local dealer but there shouldn't be any trouble with this. 5W30 is a lighter grade oil than 10W40, and is usually recommended as a winter oil in most vehicle owners manuals due to easier flowing inside the engine at a cold start-up in winter.
They are both what are called multi viscosity oils, meaning they are usable in both winter and summer.
5W means its a winter grade. 10W is also a winter grade but is a thicker flowing oil in colder weather which is why many manufacturers recommend 5W for winter.
The 30 and 40 designate the summer weight of oil. 30 weight or 40 weight and indicate the oils summer cooling and lubricating rating. In summer you want an oil that will help keep the engine cooler and better lubricated. A 40 weight oil will help pull heat from the moving parts better than a 30 weight oil will.
Many manufacturers recommend 10W30 for year round use.
Hope this helps.

2007-03-25 14:23:27 · answer #2 · answered by dannyo66 3 · 0 0

No, this will not cause you any problems. 5w 30 is just a lighter weight oil. If it is in colder weather even the better. I have been in the parts and service business for over 15 years and I have never seen a problem with a slight oil weight difference. Just change it back after your 3000 mile oil change.

2007-03-25 13:48:10 · answer #3 · answered by getem222 1 · 1 0

That's fine, don't worry. It might even be better. The lower number means the oil has a lower viscosity (thickness) at lower temperatures. The higher number means it gets thicker at higher temperatures.
5W oil pours easily when it's very cold, 40W oil barely pours when it is very cold. But 40W oil handles higher heat better. Either way many U.S. car manufacturers don't recommend 10W-40 any more, they suggest you use 5W-30. And synthetic is even better. The 5W-30 won't hurt your engine.

2007-03-25 13:50:02 · answer #4 · answered by AK 6 · 0 0

It has to do with the viscosity of the oil, and how the oil breaks down at high heat. I don't know all the scientific stuff, I just know that grade oil doesn't belong in that car.The oil you put in is very thick, and should not be used. I would drain that out, and replace with the proper grade. If you choose to run it this time, and replace with the correct grade at the next oil change, I think you will see a change in how the car starts, and the temp it holds.

2007-03-25 13:47:28 · answer #5 · answered by fisherwoman 6 · 0 1

5W 30 is thinner than 10W40. Basically on your next oil change, you could change the oil, cause you will not notice the difference.

2007-03-25 13:51:34 · answer #6 · answered by sc2m 3 · 0 0

Most makers recommend 5W30 now. As long as you're not driving 120mph in 100F temps, it's fine. The lighter oil is probably better at colder temperatures.

2007-03-25 14:00:42 · answer #7 · answered by Nomadd 7 · 1 0

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