I'm been using this stuff in the sled the past 9 yrs. Didn't realize there was a controversy surrounding its use. Never heard of G5, HOAT, or OAT till reading this forum.
I remember the factory fill was green colored and probably OEM as I bought the car from a dealer (it had never been titled) with ~ 11kmi. At the time I switched, DC was the latest & greatest and my indy said it was OK, so I went with it.
I did have to replace the original radiator when the oil cooler section leaked into the coolant, turning it a muddy brown. Don't know if that was cooling related or not. But it's not uncommon (unfortunately). When I replaced a thermostat late last year, it looked really clean. No corrosion to be found.
The OEM water pump was also replaced ~ 45kmi ago but not due to leaking or failure. Instead the TB was replaced along with a bunch of seals and it was easy to do it. It looked brand new to me, bearings were still tight.
I have noticed a bit of dried scale sometimes where aluminum meats coolant hose, but it easily cleans off and the AL is not pitted or corroded.
This past week, I drained the system to replace the heater core, which was leaking. However, this is a well known fault as hot coolant continuously flows through the HC, even when the AC is running. This was the original one, so it had been in there 14 yrs and 181kmi.
I had a bit of coolant below the carpets on both sides, but not much. However, I did notice the coolant level would drop when the heat was used and I could detect a wiff of it when using the heat (also the windshield would quickly fog up).
My 'coolant' was mostly water. When drained nothing came out but slightly pink water: no scale, crud, chunks, rust, etc. But it's changed about every 50kmi. too.
What WAS really interesting was reading about how the old SAABs needed the factory stuff or what MB used. I always used the green stuff in my 85 900T that I kept for 14 yrs and 256kmi.
On THAT car I went through two head gaskets and three water pumps! Wish I'd of known then! My (same) indy never said anything about it. Of course, then we didn't have use of the internet nor BITOG.
I'd like to hear from some other Volvo owners with white blocks of similiar vintage. What's been your experience? I just paid $17 for a gallon of DC and not too keen on dumping it and redoing everything. So far, my experience with the stuff has been fine.
I remember the factory fill was green colored and probably OEM as I bought the car from a dealer (it had never been titled) with ~ 11kmi. At the time I switched, DC was the latest & greatest and my indy said it was OK, so I went with it.
I did have to replace the original radiator when the oil cooler section leaked into the coolant, turning it a muddy brown. Don't know if that was cooling related or not. But it's not uncommon (unfortunately). When I replaced a thermostat late last year, it looked really clean. No corrosion to be found.
The OEM water pump was also replaced ~ 45kmi ago but not due to leaking or failure. Instead the TB was replaced along with a bunch of seals and it was easy to do it. It looked brand new to me, bearings were still tight.
I have noticed a bit of dried scale sometimes where aluminum meats coolant hose, but it easily cleans off and the AL is not pitted or corroded.
This past week, I drained the system to replace the heater core, which was leaking. However, this is a well known fault as hot coolant continuously flows through the HC, even when the AC is running. This was the original one, so it had been in there 14 yrs and 181kmi.
I had a bit of coolant below the carpets on both sides, but not much. However, I did notice the coolant level would drop when the heat was used and I could detect a wiff of it when using the heat (also the windshield would quickly fog up).
My 'coolant' was mostly water. When drained nothing came out but slightly pink water: no scale, crud, chunks, rust, etc. But it's changed about every 50kmi. too.
What WAS really interesting was reading about how the old SAABs needed the factory stuff or what MB used. I always used the green stuff in my 85 900T that I kept for 14 yrs and 256kmi.
On THAT car I went through two head gaskets and three water pumps! Wish I'd of known then! My (same) indy never said anything about it. Of course, then we didn't have use of the internet nor BITOG.
I'd like to hear from some other Volvo owners with white blocks of similiar vintage. What's been your experience? I just paid $17 for a gallon of DC and not too keen on dumping it and redoing everything. So far, my experience with the stuff has been fine.
