Perkins T6.354 Coolant R&R

[Troubadour]

Draining and replacing coolant from Perkins T6.354's (circa 1986). No cooling issues just time to renew coolant. Not sure which coolant to use..currently filled with Prestone type green/yellow antifreeze......local Perkins dealer says to use Full Strength "Old School" Green Ethylene Glycol from NAPA and dilute 50/50 with distilled water. Transatlantic Diesels is telling me to use Fleetguard Orange Extended Life HD Diesel Truck antifreeze. Please advise....Thanks!

 

[DavidM]

The manifolds in that engine are cast iron, so almost anything will work. Just don't mix them.

David