2003 honda civic, got 22500 miles, I just did an oil change with Castrol Gtx. The place i took was a lube place, ( didnt go to the car dealer ). everytime i do an oil change i notice the difference, but this time i didnt notice it. also i have lost the manual for the car so dont know what the capicity for the engine oil ? how many qt does it require when u do an oil change ? By changing it to Synthetic, will it make a difference ? please advise

 

My engine takes 4 qt's, and I'm using Mobil 1 Synthetic 5w-30. The synthetic oil will run smoother and if you want to run synthetic oil you should switch ASAP.

 

I went from conventional to synthetic, and noticed absolutely no difference. The car did not run any "smoother". Just my experience. (With 00 Civic EX, switched at 25k miles).

FWIW, my EX typically took less than 4 quarts, usually around 3 1/2, maybe a little more.

 

the oil your dealer would put in is 3.7 qts of 5w20

 

lets say if i change it to synthetic Mobil 1 0w-20 and if i dont see hte difference, can i go back to regular 5w-20 ? also for how many miles i can run synthetic ? or i will have to change at higher milage to the regular oil ?

 

with an engine well worn in with synthetic oil, you should be able to last 5k-8k before oil change, i heard you can go UP to 10k. but if you're with synthetic then 7 WOUld be ok...

 

May be i didnt clarify it properly. What i meant was that lets say once i reach at 100K miles, do i have to go back to regular oil or i can still use synthetic oil ? My car recommands 5w-20, what type of synthetic should i use ?

 

sub q... what is the best synthetic motor oil?

 

3.5 qts in my 1.6 L EX

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bumpincivic20 &raquo;</TD></TR><TR><TD CLASS="quote">sub q... what is the best synthetic motor oil? </TD></TR></TABLE>
Alot of people use Mobil 1 Synthetic.