imported_1999blksi

I have a 1999 si and i was using synthetic blend up until my last oil change, about 1.5 months ago, which i used Mobil 1 fully synthetic oil.

Now i know in the honda manual it says to use 5-30 but i use 10-30 b/c it has close to 100 000km on it now.

MY question is, should i be using synthetic oil for my car or not? Some ppl say it makes the engine work harder and it is not necessary. My reason for using synthetic is b/c it works better than the synthetic blend and especially since the winter is coming up, I can drive my car in the bad conditions while proctecting the engine better.

I am hoping to use the mobil 1 again with a mobil 1 oil filter.

Any input on this would be appreciated.

Thanks

Cynikal.Mindset

if u been using synthetic continue to use it...no harm, no foul

kwikb16a2

Synthetic is the way to go....ive never heard of it making the engine work harder. If it burns alot of oil then you might wanna stick with regular oil. I use 5w30 in my car and it has over 200k and doesnt burn a drop of oil.

Mirai Trunks

i'm just wondering why you are using 10w30? Just because its 10, not 5, dosent mean its a better oil hahaha. The lighter weight is meant to get into the little oil ports throughout the engine. I wouldn't want to mess around with those. You'll have engine wear if oil doesn't get where it's supposed to. As for the synthetic oil, I guess stick with it. Though there really is no reason to put that kind of oil into an economy car. Its just overkill.

kwikb16a2

why is it overkill? i bet alot of ppl want there motors to last as long as possible including myself.....especially if you drive it hard

1FastEK

Ok this is a newb question but what is the advantage of Synthetic over regular oil?

imported_QRTR

Snythethic doesn't loose its viscosity as
fast as conventional oil...

1FastEK

Is there any performance gain also?

Chigga1

if u dont want it, just switch back, i really dont think anything will happen, i did notice my engine runs alot smoother but then again ive been on Synthetic a good 25,000kms now

imported_QRTR

Nothing you can feel but it's better engine protection ...

imported_t_dot_SiR

synthetic all the way.... u would never go wrong with using synthetic.... also, if the manual say 5, then go with 5... why go 10w30??? go with the manual, and go with synthetic.... safe play!

imported_starboy869

There isn't even a price difference between 5w30 or 10w30.

Just curious WHY you 10w over 5w ?

I use Mobil 1 synthetics ever since I got my SiR.

EL_CIVIC

if ur car burns a bit of oil..they say run 10w...

i dunno why..thats just what i've heard..

imported_QRTR

10w is a bit heavier than 5w so a 10w has a bit better protection,
but in winter time you don't need such a heavy oil bc of the cold temp. but in the summer time it's good to run a little heavier oil....

imported_Yuki

I've got 268,000Km on mine and it's a stock engine.

I use 89 Octane and 5w30 non-synthetic oil. And the engine run like a dream.

I even get great performance out of it.

The G2 Racer

I always used 10w30 syn. in my old hatch. Over 300k on the stock engine and no problems.

imported_1999blksi

yea i had an old hatch with 350 on it...and i used 10W 30 all the time
guess it was a habit and yea i figured 10 would protect the engine a bit more

but i will put in 5W30 for this winter

another reason i used 10W30 was b/c i tend to drive my car like i hate it....and i figured the extra thickness would protect against my stupidity....

shlammed

5w is better for very cold temp...10w is better for very hot