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- #21
If you are not loosing any coolant, not likely, but to be safe do a bubble test, warm up the engine, open the overflow bottle but do not pull the hose out of the fluid, have someone tach up and hold (or operate the throttle bell crank by hand) the motor at 2500 rpm, watch the overflow bottle for bubbles to come out the hose from the radiator, no bubbles no problem for now. if you have opened the radiator cap recently bubbles can be normal, air being purged from the system,
Also the one blown HG I was around you could smell fuel/exhaust that was pushed into coolant, it was wife driven badly blown though came in on a tow truck.
Here is blackstones web site, where you get a sample kit for free,
Blackstone Laboratories
You could double your oil change interval with no problem. the 1FZ is very easy on oil having no major shear area's or heavily loaded parts, it holds a lot of oil and they tend to consume oil leading to make up oil which keeps up the additive package. I would not have any qualms going 5K miles on any quality dino oil and good filter, synthetic even further.
Also the one blown HG I was around you could smell fuel/exhaust that was pushed into coolant, it was wife driven badly blown though came in on a tow truck.
Here is blackstones web site, where you get a sample kit for free,
Blackstone Laboratories
You could double your oil change interval with no problem. the 1FZ is very easy on oil having no major shear area's or heavily loaded parts, it holds a lot of oil and they tend to consume oil leading to make up oil which keeps up the additive package. I would not have any qualms going 5K miles on any quality dino oil and good filter, synthetic even further.
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