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General Discussion of preventative/corrective maintenance and other technical issues regarding your coach that are not covered in other Mechanic's Corner categories (ex. refrigerators, water heaters, and compressors).

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  #1  
Old 12-07-2010
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Default Coolant/antifreeze

Howdy Folks,
Do most of you use distilled water when adding antifreeze to the coolant system? Are the premixed fluids available using distilled water?

TIA
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Old 12-07-2010
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Originally Posted by nfun2 View Post
Howdy Folks,
Do most of you use distilled water when adding antifreeze to the coolant system? Are the premixed fluids available using distilled water?

TIA
Yes to both questions.
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Old 12-07-2010
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where do you guys buy your coolant for the Detroits?
I noticed ryder fleet products only had coolant for the Cats. In a pinch, I'm sure it would work, but figured I may as well get it right the first time.
Does NAPA have a good product suitable for Detroits?

Doug
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Old 12-07-2010
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Quote:
Originally Posted by DW SD View Post
where do you guys buy your coolant for the Detroits?
I noticed ryder fleet products only had coolant for the Cats. In a pinch, I'm sure it would work, but figured I may as well get it right the first time.
Does NAPA have a good product suitable for Detroits?

Doug
Doug I have seen Detroit brand coolant sold at my local DD shop
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Old 12-07-2010
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Quote:
Originally Posted by DW SD View Post
where do you guys buy your coolant for the Detroits?
I noticed ryder fleet products only had coolant for the Cats. In a pinch, I'm sure it would work, but figured I may as well get it right the first time.
Does NAPA have a good product suitable for Detroits?

Doug
Prestone green stuff works for me. I filled the bus system after a flush and all is good...several years ago and again last year. Your Cat may require something different.
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Old 12-07-2010
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I believe you may want to use the correct coolant for a 92 series engine. The mfg calls for a coolant capable of withstanding the forces that cause cavitation.
SEE DD SPEC 7SE298
TMC RP-329 A “Type A” phosphate free
OR DDC POWER COOL

There are conflicting views on the inportance of this.

I believe the issue is centered on the wet sleeve construction of the engine, and the cavitating forces generated on the wet side of the sleeve. Cavitation is the result of pressures lower than the vapor pressure of the liquid, resulting in vapor bubbles forming and the rapidly colapsing again.

There are threads on the site.
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  #7  
Old 12-07-2010
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There's more to it than just freeze protection. DD has test strips P/N 23522774 (use by dated on bottom of bottle) to check freeze point, if DD antifreeze, and how much if any Supplemental Coolant Additive P/N 23507854 needs to be added for Ph adjust and corrosion protection. There's a lot of info here and out on the web also. Some say this isn't necessary but considering a reman engine costs $10k I'll take DD's word for it. Also use their straight 40 wt oil.
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Old 12-07-2010
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Is the detroit diesel shop the best place to buy their coolant? I live in San Diego county, so I suspect there must be a shop near me.
thank you,

Doug
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Old 12-07-2010
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I've been using Fleetcharge- it is pinkish in color (like DD power cool) and has the SCA's already in it. Mixed 50-50 with distilled water. Test your coolant with strips to make sure that Nitrites, pH and SCA's are all in balance. You can get Fleetcharge at most HD truck suppliers and truck stops. Look for the phrase "Precharged with SCA's" and you'll know you have the right stuff.
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  #10  
Old 12-07-2010
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Quote:
Originally Posted by DW SD View Post
where do you guys buy your coolant for the Detroits?
I noticed ryder fleet products only had coolant for the Cats. In a pinch, I'm sure it would work, but figured I may as well get it right the first time.
Does NAPA have a good product suitable for Detroits?

Doug
i buy at tractor supply co. i believe its called "fleet charge" i get test strips 3 for $10 at local cummins shop-i test nitrate level and freeze point and i test in spring and fall mike
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