Dealer put 5 20 instead of 5 30 engine oil

[nayilsi]

What are the consequences ?....im going tomorrow to have that fixed.... but im afraid ive driven 300 miles on 5 20....

im talking abt the Si.

[kelmar]

300 miles isn't going to kill anything.

I'm no mechanic or engineer but I wouldn't worry about it. But if you are, and it sounds like you are, drive back to the dealership tomorrow or at least call their service manager and complain.

[Pdivizzle0112]

wont hurt anything. just leave it in

[Chase]

omg thats it, your motor is going to explode!

[mrdimsum]

dont' worry about... won't harm it... i don't think.... its practicaly 5-30

[suave2978]

chase I like you sarcasm!!!

[nayilsi]

Originally Posted by Chase

omg thats it, your motor is going to explode!

i am getting a weird knocking sound from the engine.

[Vsin]

lol, im going to put 5w30 in my r18. lets trade cars.

[jmjohns9]

Id have them change it at some point but is not that big of a deal. The only situation where the 5w-30 is better is in high heat. So just don't track it until u switch. Knocking would not be caused by this... What kind of knocking r u talking about?

[nayilsi]

a weird extra sound from the engine...

its an additional thudding sound besides the injectors, while the vehicles idling. Its a popping sound...mild but can be heard along with the injectors.

No shaky vibrations while idling though....idle feels day 1 smooth.

[Firestrife]

hey man take it easy it'll be fine, dont need to freak out over the small things if i were you id google about these tidbits before freaking out on the boards about it.

[Chase]

go to your dealer and demand they replace the entire engine immediatly, You now have a ticking time bomb waiting to go off! Your whole car is going to catch fire.

[sjlarue]

Ok Here is a quote from the websight listed below:

"Most people are familiar with oil's viscosity rating—10W40, for example. However, very few may know that the "W" refers to "winter," not "weight." And most of us have no idea what the weight-rating numbers actually mean other than that the vehicle's manufacturer specifies a particular viscosity."

and

For technoids, weights are defined thusly (stokes and centistrokes are measurements of viscosity):

"SAE 30 is SAE 30 no matter what the "W" prefix number is: 0W, 5W or 10W. This viscosity in centistokes (cSt) @ 100 degrees C is with the minimum of 9.3 cSt and a maximum of 12.5 cSt.

"SAE 40 is SAE 40 no matter what the "W" prefix number is: 5W, 10W, 15W or 20W. The viscosity @ 100 degrees C is within the minim of 12.5 cSt and a maximum of 16.3 cSt.

"SAE 50 is SAE 50 no matter what the "W" prefix number is: 5W, 10W, 15W or 25W. The viscosity @ 100 degrees C is within the minimum of 16.3 cSt and a maximum of 21.9 cSt.

"SAE 60 is SAE 60 no matter what the "W" prefix number is: 10W, 15W or 25W. The viscosity @ 100 degrees C is within the minimum of 21.9 cSt and a maximum of 26.1 cSt.

If This intrest you you poor poor man the websight is:

http://www.automedia.com/Oil/Viscosity/ccr20010101ov/1

When I was younger, almost 20 years ago now, I took an engine mechanics class. The prof. discussed viscosity for two hours.(I'm not kidding) I think he must have done this webpage cause after page seven I got bored.

From what I read the info is sound, but personally I think there are too many ads on this site, but you get what you get.

[civexsi]

The dealer did the same thing to my civic. I got it changed just before I drove it out of town on a business trip. I had them fix it the next weekend when I got back. I was upset, but no worries about the engine.

[av911]

It's no biggie. It's practically the same oil.

I've put in 5w-30 a few time in my R18, still running.

[mrdimsum]

Originally Posted by nayilsi

i am getting a weird knocking sound from the engine.

try putting in 91 octane

[nayilsi]

Originally Posted by mrdimsum

try putting in 91 octane

i always use 93

i checked for sounds today... no knocking.... couldnt even tell the car was on.

[Pdivizzle0112]

Originally Posted by nayilsi

i always use 93

i checked for sounds today... no knocking.... couldnt even tell the car was on.

its called "variable Valve timing"

Is there also a click when the engine is idling?

[nayilsi]

Originally Posted by Pdivizzle0112

its called "variable Valve timing"

Is there also a click when the engine is idling?

yes i can hear the injectors..... but i was referring to an additional sound.

its only there when the car idles.....

[brooklyngenius]

actually the SI is supposed to have 5 20 not 5 30 like the r18 civic so you are perfectly fine.