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26/12/2023 11:17 pm
Topic starter
is z max a very good engine treatment for 4.8 engines its a 2004 chevy silverado ls with 79200 miles on it
4 Answers
2
26/12/2023 11:36 pm
Zmax is just a scam product. A fresh oil change will do your engine better.
2
26/12/2023 11:48 pm
is z max a very good engine treatment
No.
1
26/12/2023 11:58 pm
is z max a very good engine treatment for 4.8 engines its a 2004 chevy silverado ls with 79200 miles on it
Hook up a basic scan tool that has Live Data and look at your fuel trims (LTFT and STFT, shorthand for Long-term Fuel Trim and Short-term Fuel Trim). It should be basically 0. If you're above or below 0, as a percentage, (more than 5%, plus or minus) you might look into ATS Carbon Clean. That truck is almost 20 years old, so vacuum leaks are also possible.
1
27/12/2023 2:24 am
snake oil. Don't waste your money.
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