What kind of additives do you run in your classic car?

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12-07-2011, 04:35 PM

#11

1971mach1

2nd Gear Member

Join Date: Sep 2008

Location: The garage (near SF bay- Calif)

Posts: 469

+1 for Valvoline VR1, you can even get it in 10W-30 from Napa Auto.

Cam-shield dot com website has a good ZDDP write up.

12-08-2011, 12:58 AM

#12

EZFEED

2nd Gear Member

Join Date: Mar 2009

Location: Louisiana

Posts: 345

half a quart of 2cycle oil to every other tank

12-08-2011, 08:01 AM

#13

kalli

6th Gear Member

Join Date: Oct 2006

Location: Cork, Ireland

Posts: 6,417

VR1 here as well. If I don't have that I use ZDDP as additive. But if I can get my hands on VR1 (harder to find in europe) then I'll go with that.

12-08-2011, 09:30 AM

#14

1slow67

ROTM Moderator

Join Date: May 2007

Location: Huntsville, AL

Posts: 8,146

Mobil 1 or Castrol GTX 10-W30

12-08-2011, 10:11 AM

#15

wgc68nyc

2nd Gear Member

Join Date: May 2011

Location: NY

Posts: 183

Quote:

Originally Posted by 200ci66

After reading a little bit about the differences between leaded and unleaded gasoline, I am curious as to how many people use a lead additive? Is it really necessary to use one?

I have heard it is not necessary unless you are driving your car alot. That said it is not needed at all if you have updated cylinder heads. The only reason you need it is if you have the original iron top (like mine does). I drive a decent amount so I add a bottle of Gunk Lead substitute to protect my valves and my 302 purrs. for $3.99 more each fill up I see it as cheap insurance.

Could be a great excuse to upgrade your cylinder heads but if you do the math it doesnt work out....but who cares.