Ignorant diesel newbie needs coolant help

[stallionmedic]

I have a 91 f250 with a 7.3L IDI....65k original miles....runs great. In doing my homework on this truck...of course i stumbled upon cavitation articles and freaked. I checked the coolant with a hydrometer and had good freeze protection but the coolant was unlike anything ive seen before....yellowish gold in Color. There was a john deere keychain in it and i believe the previous owner may have use the cool gard john deere coolant....my question is....will the TEST STRIPS ive heard about tell me if i have the SCA protection against the cavitation issue? Or should i just flush the damn thimg and run something like fleet guard with added SCA? Forgive my inexperience....just trying to do my best to learn while protecting my new baby

 

[IDIBRONCO]

The test strips would tell you that. It's what they were made for. If I remember right, Prestone is yellowish-gold in color. I've seen some "universal' antifreezes that were also this color. You may not have John Deere antifreeze in there. I'm just trying to give you other explanations.

 

[stallionmedic]

The test strips would tell you that. It's what they were made for. If I remember right, Prestone is yellowish-gold in color. I've seen some "universal' antifreezes that were also this color. You may not have John Deere antifreeze in there. I'm just trying to give you other explanations.

Cool thank you...i will use the strips tomorrow...if theres no protecton ill go ahead and flush....ive had diesel guys recommend fleet guard with added SCA...bought that just in case

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[stallionmedic]

Cool thank you...i will use the strips tomorrow...if theres no protecton ill go ahead and flush....ive had diesel guys recommend fleet guard with added SCA...bought that just in case

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My one fear was that seone may have thrown plain old motorcraft gold in there....this truck was well maintained. So probably not....but after staying up all night reading about cavitation ive gone paranoid

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[chillman88]

I looked it up. Cool guard II seems to be designed the same way fleetguard and the like are so IF IT IS the JD coolant the test strips definitely should tell you if it's good.

I did the same thing you did. Turned out I just had plain green coolant. I added a couple bottles of additive and got the levels up to where they should be and now I don't lose sleep over my coolant anymore!

Welcome to OilBurners! We need pictures of your truck!

 

[IDIBRONCO]

Be sure to let us know what you find.

 

[IDIoit]

I NEVER run anything the previous owner ran.
100% of all fluids get changed. even power steering fluid.
mainly for the fact that I know whats in there.

 

[stallionmedic]

I NEVER run anything the previous owner ran.
100% of all fluids get changed. even power steering fluid.
mainly for the fact that I know whats in there.

91f250 i hope tge pic posts....mounted my ox skull on the front today...post a pic of that as well

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[IDIoit]

91f250 i hope tge pic posts....mounted my ox skull on the front today...post a pic of that as well

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you need a few more doors

 

[stallionmedic]

you need a few more doors

The originals had power windows that failed...seapped these off of an older truck...they have cranks...going to flat black the truck in the next week or so

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[stallionmedic]

The originals had power windows that failed...seapped these off of an older truck...they have cranks...going to flat black the truck in the next week or so

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Front addition today

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[stallionmedic]

I looked it up. Cool guard II seems to be designed the same way fleetguard and the like are so IF IT IS the JD coolant the test strips definitely should tell you if it's good.

I did the same thing you did. Turned out I just had plain green coolant. I added a couple bottles of additive and got the levels up to where they should be and now I don't lose sleep over my coolant anymore!

Welcome to OilBurners! We need pictures of your truck!

Front addition today along with full body
..doors swapped for crank windows going to paint her flat black asap

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[DrCharles]

You need an "L" to go with that "DIESE" badge

 

[stallionmedic]

You need an "L" to go with that "DIESE" badge

Ha....yeah noticed that today...shes got some age but well shhine her up...only had her about 5 days now!!!

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[stallionmedic]

Ha....yeah noticed that today...shes got some age but well shhine her up...only had her about 5 days now!!!

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The "L" is there in spirit for now!!!

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