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mrmickeymouse · 06-11-2004, 09:38 AM

Here are some examples:

http://www.renntech.org/forums/index.php?act=Content&code=diy_oc

http://www.986faq.com/7-0/oil.asp

I have spoken to a racer who stated that Valvoline Synthetic has been very good to them.

I have always liked Castrol oil's, but he [racer] stated having excessive valve wear using Castrol Synthetic.

I live in a warm area, and I prefer 20-50 due to it's higher viscosity. Thicker oil equals more protection; viscosity breaks down as it degrades under use.

If you were to feel 10-40 compared to 20-50 you would feel a difference,

It would be better to keep the thickest wall of protection between your journals and your bearings.

Mobil is good if you can get it at a reasonable cost.

Scott

06-11-2004, 09:38 AM	#2
mrmickeymouse Registered User Join Date: Apr 2004 Location: San Diego Posts: 348	Here are some examples: http://www.renntech.org/forums/index.php?act=Content&code=diy_oc http://www.986faq.com/7-0/oil.asp I have spoken to a racer who stated that Valvoline Synthetic has been very good to them. I have always liked Castrol oil's, but he [racer] stated having excessive valve wear using Castrol Synthetic. I live in a warm area, and I prefer 20-50 due to it's higher viscosity. Thicker oil equals more protection; viscosity breaks down as it degrades under use. If you were to feel 10-40 compared to 20-50 you would feel a difference, It would be better to keep the thickest wall of protection between your journals and your bearings. Mobil is good if you can get it at a reasonable cost. Scott