Joined: Fri Oct 03 2014, 05:53PM
Location: Amherstburg
Posts: 10
I just picked up a 1965 Dodge Monaco Convertible & friend told me I should use a lead additive in the gas & an Oil with Zinc in it, for the Cam, seeing as how this is the original motor. Any suggestions would be appreciated.
Joined: Thu Oct 13 2005, 08:23PM
Location: Beautiful Down Town Roebuck Ontario
Posts: 227
Are you running high valve spring pressures at high RPM for extended periods of time ? Didn't think so. Don't worry about the fuel as far as lead is concerned.
What engine? 383 or 413 4V engine might not be real happy with what passes for premium gas these days but it can be worked around. 318 or 383 2V will run on Regular OK.
Oil? Just run a good quality 15w40 diesel oil like Shell Rotella, Mobil Delvc etc. Lots of zinc in these type of oils and they are available at Walmarts everywhere.
Edit. Just noticed the sample is from 2011. If you really want to know, just get a quart of your favorite 15w40 or 5w40 syn diesel oil and go to a truck dealer and have them send in a sample for you. About $25 +/-.
Joined: Sun Oct 16 2005, 10:44AM
Location: Knoxville, TN
Posts: 78
I've been using synthetic oil for years, before I got back into classic cars in 2002. I was worried about using it in my older engines, but I discovered that Mobil 1 15W-50 has a pretty good amount of zinc so I use it. See this chart:
I either buy it at Wal-Mart in 5 quart containers for about $25 bucks, or I wait for Autozone or Advance to run one of their oil-change specials, which includes 5 quarts of oil plus a Mobil 1 filter for around $32. Amazingly, my 69 Chrysler 300 with a 440, my 77 New Yorker with a 440, my 2003 Jeep Grand Cherokee with the 4.7L V8, my 2005 Dodge Grand Caravan with the 3.8L V6, and my son's 92 Jeep Wrangler with the 4.0L straight 6 all use the same oil filter, so I like to stock up on those when the oil change special comes around.
Joined: Wed Aug 11 2010, 10:15AM
Location: E WA
Posts: 1230
mantonas wrote ...
I've been using synthetic oil for years, before I got back into classic cars in 2002. I was worried about using it in my older engines, but I discovered that Mobil 1 15W-50 has a pretty good amount of zinc so I use it. See this chart:
I either buy it at Wal-Mart in 5 quart containers for about $25 bucks, or I wait for Autozone or Advance to run one of their oil-change specials, which includes 5 quarts of oil plus a Mobil 1 filter for around $32. Amazingly, my 69 Chrysler 300 with a 440, my 77 New Yorker with a 440, my 2003 Jeep Grand Cherokee with the 4.7L V8, my 2005 Dodge Grand Caravan with the 3.8L V6, and my son's 92 Jeep Wrangler with the 4.0L straight 6 all use the same oil filter, so I like to stock up on those when the oil change special comes around.
To add to the list, the oil filter for my 1999 Interpid ES will work on a B/RB engine. The filter is a little shorter than OEM which actually works better sometimes if you need to clear the lower radiator hose.
I use either diesel oil (15W40, 5W40 usually Rotella) or Mobil 1 15W50 in my old cars.
As for gas additives to replace lead, I say run them until you have issues then get a valve job with hardened seats.
Walmart has had Mobil1 on sale recently for $22 and change which is tough to beat but the 15W50 always disappears first.