I use Royal Purple 5-20 and save a couple MPG'S

 

FTW!!!!

 

Hey suka4thong, haven't seen you since supercarsunday way back when. haha
how's the bags.

 

amsoil 0w20

 

Mobil 1 Synthetic 5W-30 every 5K times

 

hmmm i have a few questions..lol
i got a 2006 is350.. so which synthetic should i use?? i usualy jus go to mrlube and they do it for me... charge me around 105.00$cdn
and last oil change i had wwas about 3.5k ago but i got a longgg 12 hr drive comming up soon... so should i go get it done before i make that long ride?

thanks!

 

I use Royal Purple 5W-30, but what is the difference between using 5w-30 and 5w-20? Please advise.

 

Been using mobil 1 synthetic until my last oil change - went w/ Royal Purple

 

5w-30 has a higher weight during operating temp.

better protection for your engine if you are putting a lot of load on the engine.

otherwise for everyday normal use, toyota now says 5w-20 is fine for our engines

it could save u mpg like it did for me

 

cool. what made you go for the change?

or did ya just wanna try it out

 

Used oil analysis (UOA) for the IS (using quality synthetics) have shown that 10K miles or one year (whichever comes first) is a safe oil change interval (OCI). There is no need to change the filter at six months. There is no oil that can be used for 25-35K miles without doing UOAs every 5K miles after 10K miles. I personally use Amsoil 0w-20 for better cold start flow. Any of the top synthetics are over kill for anything less then 10K mile OCIs.

Koz

 

I've been running my Amsoil 0w20 for 10k with filter changes every 5k, are you saying just stick with the same filter for 10k ?

 

Yes, I have had two UOAs with no filter change (at 10K miles) and they both showed no filter change is needed. OEM filters.

Koz

 

So the best way to go is Amsoil 0W20 at 10K/1 year?

 

you can do that with any synthetic.

even dino oil.

but i still like the idea of having a clean filter every 5k.