I have a 1999 civic si with a gsr swap with about 10k miles on it.. I want to use royal purple.. should i use flat weight or mix? I live in FL

10w-30 over flat 30w oil

 

10w30 or 5w30 ONLY!!!

i prefer 5w30.. we can start a 100 page post by asking which is better but they both work great in hondas

 

5W-30 is the recommended viscosity.

 

5 is not to think for the start up?

 

Here's a hint ....

does Honda recommend a flat-weight oil?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicGSRsi &raquo;</TD></TR><TR><TD CLASS="quote">5 is not to think for the start up?</TD></TR></TABLE>

What?

 

what wrong with you motor? why you using royal purple?

 

"5 is not to think for the start up? "

he mean "5 is not to thick for the start up?'

at start up 5w30 is thinner then 10w30 and way thinner then sae30!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gezzuzz &raquo;</TD></TR><TR><TD CLASS="quote">"5 is not to think for the start up? "

he mean "5 is not to thick for the start up?'

at start up 5w30 is thinner then 10w30 and way thinner then sae30!! </TD></TR></TABLE>

I think he meant thin.

 

I just like royal purple so what if its a lil more $

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicGSRsi &raquo;</TD></TR><TR><TD CLASS="quote">I just like royal purple so what if its a lil more $</TD></TR></TABLE>

Well, there's nothing wrong with using Royal Purple. It's good stuff. More than I would pay to put in my motor (stock B18B1) .... but nothing wrong, per say.

 

If you change it every 3-5K miles, it really doesn't matter what oil you use. If you use a 30 wt though, you will shorten the life of your motor.