I've read differing and confusing data regarding zinc and phosphorus...
I called Dave at Redline and he said that it is not zinc levels that cause problems but phosphorus levels....
I didn't ask him how much zinc and phosphorus is too much for passenger cars and light trucks...
I've searched the topic and found that 1400 ppm is too high,,,another said 2000 ppm is too high... Another sight said 900 ppm is high for zinc and 800 is high for phosphorus,,,What is the real story...?
I don't want to hurt catalytic converter ..I have 2008 F-150.. Different oils show different levels of zine and phosphorus...
What is too high and what is too low in terms of ppm for passenger cars and light trucks for zinc and phosphorus..?
Thanks
I called Dave at Redline and he said that it is not zinc levels that cause problems but phosphorus levels....
I didn't ask him how much zinc and phosphorus is too much for passenger cars and light trucks...
I've searched the topic and found that 1400 ppm is too high,,,another said 2000 ppm is too high... Another sight said 900 ppm is high for zinc and 800 is high for phosphorus,,,What is the real story...?
I don't want to hurt catalytic converter ..I have 2008 F-150.. Different oils show different levels of zine and phosphorus...
What is too high and what is too low in terms of ppm for passenger cars and light trucks for zinc and phosphorus..?
Thanks