What thickness oil do you recommend?

[Fubar231]

I live in central ohio, (to get an indea of temps etc), and ive been using 10w30 oil, and im about to do an oil changed and i asked my friend who has a mk3 also, and he says he runs 15w50 and that i use wayyyy to thin of oil. I couldn't go off of just one person so i took it to the internets! What do you guys recommend?

EDIT: Can we get a mod to move this for me?

 

[CyFi6]

We have an entire section dedicated to motor oils... you have a loooot of reading to do

 

[Mk3runner]

5w30 or 10w30 that's me tho.

Unless your motor is wore out or trying to cheat rodknock.

 

[Fubar231]

One other question, ive been using straight 10w30 dino oil since my headgasket (at 155,000) and i was wondering when/how should i switch to synthetic? Should i just go full synthetic or should i use a blend then go full synthetic? When my metal headgasket was done the head was cleaned up, a few valves were replaced with stock ones, and that was about it. The bottom end was left untouched. So i just don't know what oil to run, or when to go synthetic or whatnot. Ill go make a thread in the oil section if i need too, but im just tryin to get an idea...

 

[Piratetip]

Tell your friend to educate himself, and do yourself a favor, don't listen to his advise anymore.

Now head over to this section and read.
http://www.supramania.com/forums/forumdisplay.php?f=108
Every question will be answered.

 

[Supracentral]

Read:

http://www.supramania.com/forums/showthread.php?t=38811

and

http://www.supramania.com/forums/showthread.php?t=46094

and

http://www.supramania.com/forums/showthread.php?t=48993

and

http://www.supramania.com/forums/showthread.php?t=42763

and finally

http://www.supramania.com/aehaas/

Then post here if you still have questions:

http://www.supramania.com/forums/forumdisplay.php?f=108

asked my friend who has a mk3 also, and he says he runs 15w50 and that i use wayyyy to thin of oil.

Your friend is giving you very bad, and dangerous advice.

After reading the links above, you will understand why, and you will be able to tell him, with authority that is backed by a thorough understanding of oil and how it works, that he's running wayyyy to thick of an oil.

Share the links with him - he may learn something.