Hello everyone! Thank you for clicking on this thread.
I just completely drained the coolant and flushed the radiator, the whole deal. When i put water in and run it, it comes out clear like a clean system should. Now i'm up to the part where I fill it up with new coolant. This is my first Z, (well, my first car actually). So my question to you today is: Can someone tell me which coolant to use?
1990 Nissan 300zx 2+2 NA. Thanks!
Which coolant should I use?
Re: Which coolant should I use?
I'm running Preston 50/50 in my 92 2+2 NA and it's doing well! My 94 2+0 buddy is running Peak coolant and his car is running fine as well.
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DCaff300ZX
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1993 CRP TT- Modified - Location: Tacoma, Washington
Re: Which coolant should I use?
Any good quality coolant works fine, just be SURE to bleed tha air from your system for a correct job and for correct operation. Leaving ANY air in the cooling system WILL cause heat buildup and possible overheating even with no real problem other than that air.
The correct procedure is to fill the rad to 90%+ with coolant, leaving rad cap off start the car and turn on the heater fan on high, with the heat set at maximum. With coolant flowing correctly in the rad, fill it to the top of the filler neck and then open the bleeder screw on the left side of the rad, and then put your radiator cap on tightly. CAREFULLY (being careful to avoid spinning fan!) pinch the top radiator hose with your left hand until coolant is RIGHT at the top of the bleeder hole on top of the rad and put the bleeder screw back in- this ensures no air anywhere in the rad and system. Check the coolant level soon after, say the next day and after the car is cool to ensure it's full of coolant still, and then repeat the bleeding process when recapping each time to ensure the lack of air and you should be good to go! Also, be aware that a small leak in the heater core can cause fluid loss when none shows up front, and can be a cause of slow overheats.
The correct procedure is to fill the rad to 90%+ with coolant, leaving rad cap off start the car and turn on the heater fan on high, with the heat set at maximum. With coolant flowing correctly in the rad, fill it to the top of the filler neck and then open the bleeder screw on the left side of the rad, and then put your radiator cap on tightly. CAREFULLY (being careful to avoid spinning fan!) pinch the top radiator hose with your left hand until coolant is RIGHT at the top of the bleeder hole on top of the rad and put the bleeder screw back in- this ensures no air anywhere in the rad and system. Check the coolant level soon after, say the next day and after the car is cool to ensure it's full of coolant still, and then repeat the bleeding process when recapping each time to ensure the lack of air and you should be good to go! Also, be aware that a small leak in the heater core can cause fluid loss when none shows up front, and can be a cause of slow overheats.