It's time for a coolant flush on my 1987 and I was wondering if anyone is using ELC (extended life coolant)? Is there any need for a coolant that provides cavitation protection or should I just stick with G-05? Not too worried about freeze protection here but rather corrosion. If there is a good thread already on this that I missed please point me in that direction....thanks

Attached Thumbnails

 

__________________
Brian
87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
02 F350 Powerstroke 180K
05 Chevy Express 1 ton w/Royal Utility box 120K
08 Infiniti FX-35 40K
15 Golf Sportwagen TDI 35K
10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K

Stick with the G-05, change every three years, that's served me well.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC

All glycols resist pump cavitation. G-05 has nitrite additives specifically to prevent liner cavitation. The newer standard is Zerex G48, which is is a long life coolant without silicates.

Thanks, looks like sticking with G-05 will be my easiest option.

I tried to change the thread title since I meant to type OM603 but instead came out OM606

__________________
Brian
87 300Dturbo 180K #14 head still running R-12 SOLD 12/2017
02 F350 Powerstroke 180K
05 Chevy Express 1 ton w/Royal Utility box 120K
08 Infiniti FX-35 40K
15 Golf Sportwagen TDI 35K
10 Sprinter 3500 chassis with a Class A Winnebago on it. 56K