I have used Prestone 50/50 with distilled water in my 331 from day one. I also have aluminum heads, intake and rad.
The block was tanked and completely clean when the engine was built, the Champion rad was new with all new silicone hoses.
I am running the same coolant when the engine was installed about ten years ago and it is still perfectly clear, unless I hear otherwise I won’t change it. I think antifreeze does not wear out, it gets contaminated.
I have no filter in the system.
YMMV

Bentworker wrote:

John Deere Cool-Guard II

No real reason other than it is supposed to be pretty good stuff.

 
As a 38 year Deere employee I can tell you “ Nothing runs like a Deere and smells like a John”
I hope their anti freeze is of a different odour.
.

Good one Rudi
I use the green colored coolant.

I use this with my old 289 and Champion rad. I know it says GM but really what could be the difference? AutoZone 50/50 Dex-Cool Antifreeze and Coolant AutoZone extended life antifreeze and coolant is formulated for use in all general motors vehicles that require this type of antifreeze.
[list=none]
[*]Protects against temperature extremes
[*]Protects against the ravages of rust and corrosion
[*]Protects against premature water pump failures
[*]Formula has a concentrated blend of premium long-lasting inhibitors to offer protection for up to five years or 150,000 miles
[/list]
[list=none]
[*] 
[/list]

I try and keep it simple. All my vehicles, now 3, get Rotella ELC NF coolant as the largest user is my F-250 Diesel and the ELC is what it requires. 

A bigger question; how do you guys dispose of the old? Back in the day I just used to let it drain into the gutter to be washed away with the next rain. Heck, my Dad taught me how to dispose of oil down the toilet or dig a hole in the backyard. Living now where we do with a personal septic system and water well I try and catch all I can. Oil is easy to dispose of at the local auto parts, antifreeze not so.

RV6 wrote:

I try and keep it simple. All my vehicles, now 3, get Rotella ELC NF coolant as the largest user is my F-250 Diesel and the ELC is what it requires. 

A bigger question; how do you guys dispose of the old? Back in the day I just used to let it drain into the gutter to be washed away with the next rain. Heck, my Dad taught me how to dispose of oil down the toilet or dig a hole in the backyard. Living now where we do with a personal septic system and water well I try and catch all I can. Oil is easy to dispose of at the local auto parts, antifreeze not so.

Weight/Watt!!.....You means stray cats don't like it anymore??!

Ain't that funny?.........(Not FUNNY just.....funny-funny ....thx Carl Childers) Oil comes from the ground butt......can't go BACK on the ground!?
 

Last edited by 6sally6 (10/04/2020 2:02 PM)

here in the PNW they will only take the milk jugs with oil that is black. So if I need to get rid of other stuf I make sure it is black when I set it out. So far so good

Here in NY, automotive oil is accepted at any service station.  My friends service station actually uses this oil for heating his place.  Other automotive "chemicals" go to the local county run recycling center.  
I'll note that if the county didn't make arrangements accept this waste, you'd find it dumped somewhere, so if the authorities want to protect the environment, they have to make facilities available to accept it.
I'll note that as a kid growing up, everyone simply dumped all these fluids down the sewer, and the sewers dumped out into the local rivers and ocean. 

I did find used oil mixed with just a bit of gasoline worked very well for starting fires.  I used to call it free Diesel fuel.  Not technically accurate as we had to pay for the gas, but pretty close.  I found that trying to start fires where the fuel was wet, not seasoned, etc. gasoline would burn out too quickly.  The used oil slowed the burn, allowed it to dry out and by the point it was used up the fuel was going strong.  This was always outside, bonfires and burn piles for yard waste, etc.  I did burn clean scrap from construction jobs many times (no treated of course).  Heck, when I was a kid, lacking trash service we used to burn all the trash like once a month in a burn pit.  Fire company showed up once to twice due to a call from someone who saw the smoke.  They just said "everything looks under control" and left.  Times really have changed. 

6sally6 wrote:

TKOPerformance wrote:

I did find used oil mixed with just a bit of gasoline worked very well for starting fires.  I used to call it free Diesel fuel.  Not technically accurate as we had to pay for the gas, but pretty close.  I found that trying to start fires where the fuel was wet, not seasoned, etc. gasoline would burn out too quickly.  The used oil slowed the burn, allowed it to dry out and by the point it was used up the fuel was going strong.  This was always outside, bonfires and burn piles for yard waste, etc.  I did burn clean scrap from construction jobs many times (no treated of course).  Heck, when I was a kid, lacking trash service we used to burn all the trash like once a month in a burn pit.  Fire company showed up once to twice due to a call from someone who saw the smoke.  They just said "everything looks under control" and left.  Times really have changed. 

Hey TKO!!.......You didn't make a trip out to California earlier this summer did you?!!

Yeah...when I was a kid that was one of my chores..........Burn the garbage can once a week. We had EVERYTHING........in that can!! MAN did that thang stink sometimes!
Really cool when dadz empty shaving cream cans exploded!! Sorta like a grenade!.......
(Hangar-nade if......UR from Alabama!)
6sally6
 

Back in 67 or 68 was the last year we could burn our garbage. Every house had an incinerator in the back yard and there was a concrete walkway to the incinerator. I was chief incinerator in those days and loved my job. At times it stunk good, others not so good. I still like burning and blowing up things. 

Last edited by RV6 (10/05/2020 4:59 PM)

6sally6 wrote:

TKOPerformance wrote:

I did find used oil mixed with just a bit of gasoline worked very well for starting fires.  I used to call it free Diesel fuel.  Not technically accurate as we had to pay for the gas, but pretty close.  I found that trying to start fires where the fuel was wet, not seasoned, etc. gasoline would burn out too quickly.  The used oil slowed the burn, allowed it to dry out and by the point it was used up the fuel was going strong.  This was always outside, bonfires and burn piles for yard waste, etc.  I did burn clean scrap from construction jobs many times (no treated of course).  Heck, when I was a kid, lacking trash service we used to burn all the trash like once a month in a burn pit.  Fire company showed up once to twice due to a call from someone who saw the smoke.  They just said "everything looks under control" and left.  Times really have changed. 

Hey TKO!!.......You didn't make a trip out to California earlier this summer did you?!!

Yeah...when I was a kid that was one of my chores..........Burn the garbage can once a week. We had EVERYTHING........in that can!! MAN did that thang stink sometimes!
Really cool when dadz empty shaving cream cans exploded!! Sorta like a grenade!.......
(Hangar-nade if......UR from Alabama!)
6sally6
 

NO!  No one can prove that!