Coolant Choices

[Steff]

The manual needs to be updated. Per this technical bulletin, the Rocket switched to the D2053 (orange) OAT coolant from the older HD4X (green) Si-OAT coolant following VIN AG0784.

https://dot.report/bulletins/MC-10190824-9999.pdf

Ah, just put a silicate-free one in and flush if need be. Not losing sleep over this.

 

[Journeyman]

I wonder if this is really a big deal and more like Triumph changing their source for coolant- like they have with oil in the past. Changing oils from the recommended brand certainly won't hurt your engine, but the advice not to mix different brands is probably good (but likely not that crucial either, as far as causing some kind of significant damage).

The new coolant says...
"D2053 OAT coolant contains corrosion inhibitors and antifreeze suitable for aluminium [their mis-spelling] engines and
radiators."

Pretty well describes the previous stuff too, doesn't it? Are the new radiators a different kind of aluminum?

To be safe, if you're topping off you should probably (?) use the same stuff. If draining completely to bleed the clutch or set timing, for example, I would just put in something that won't hurt the radiator and is affordable. like the Zerex.

Amazon.com: Zerex G05 Phosphate Free 50/50 Ready-to-Use Antifreeze/Coolant 1 GA : Automotive

Buy Zerex G05 Phosphate Free 50/50 Ready-to-Use Antifreeze/Coolant 1 GA: Antifreezes & Coolants - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

go.r3owners.net

 

[Einar]

I wonder if this is really a big deal and more like Triumph changing their source for coolant- like they have with oil in the past. Changing oils from the recommended brand certainly won't hurt your engine, but the advice not to mix different brands is probably good (but likely not that crucial either, as far as causing some kind of significant damage).

The new coolant says...
"D2053 OAT coolant contains corrosion inhibitors and antifreeze suitable for aluminium [their mis-spelling] engines and
radiators."

Pretty well describes the previous stuff too, doesn't it? Are the new radiators a different kind of aluminum?

The reason Triumph gave for the change is to increase the service life of the coolant from 3 years to 5 years.

Inorganic acid salts (silicates, phosphates, borates, nitrites, and amines) only protect for 2-3 years. Organic acid salts aren't quite as protective but do protect for 5-10 years.

Side note: "Aluminium" is the Bri'ish spelling, so not misspelled--just different.

 

[Kiwicol]

Thanks Einar, I knew I'd read somewhere about the OAT spec but couldn't remember where. Changing spec after printing the manual can cause confusion for all.

 

[Steff]

I wonder if this is really a big deal and more like Triumph changing their source for coolant- like they have with oil in the past. Changing oils from the recommended brand certainly won't hurt your engine, but the advice not to mix different brands is probably good (but likely not that crucial either, as far as causing some kind of significant damage).

The new coolant says...
"D2053 OAT coolant contains corrosion inhibitors and antifreeze suitable for aluminium [their mis-spelling] engines and
radiators."

Pretty well describes the previous stuff too, doesn't it? Are the new radiators a different kind of aluminum?

To be safe, if you're topping off you should probably (?) use the same stuff. If draining completely to bleed the clutch or set timing, for example, I would just put in something that won't hurt the radiator and is affordable. like the Zerex.

Amazon.com: Zerex G05 Phosphate Free 50/50 Ready-to-Use Antifreeze/Coolant 1 GA : Automotive

Buy Zerex G05 Phosphate Free 50/50 Ready-to-Use Antifreeze/Coolant 1 GA: Antifreezes & Coolants - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

go.r3owners.net

Correct. All this BS based on scaring folk. Well, I don't pay attention. Like I said, flush then put what you want in.