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Old 09-07-2017, 11:35 PM   #659 (permalink)
BLSTIC
Master EcoModder
 
Join Date: Jun 2010
Location: Australia
Posts: 253

Delivery 'Boy - '86 Suzuki Mighty Boy
90 day: 37.15 mpg (US)

SkipSwift - '13 Suzuki Swift GL
90 day: 35.44 mpg (US)
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Oh and Changzuki - I once ran CLR through an engine to clean out the inside after it had been run with tap water for a couple of years.

Filled it up with as much CLR as I could afford (apparently you're supposed to go 50/50, but I had a 14L cooling system so screw that) without the thermostat in it, Drove/idled without a thermostat for about half an hour after warmup (you might need cardboard in front of the radiator to keep temps up if you're driving and not just free revving). Dropped that then flushed it thoroughly several times. Unending horror came out of it on the first dump, merely above average on the first flush, then after a couple more flush & starts 'to be sure' it was clean.

The car was a burnout car (4L 240hp 6) and after that was able to stay cool for three minutes at full power with no airflow and just the electric fans. Also the heater worked better than I've ever seen on that type of car.

Might be worth a shot for your rusty engine?
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