Here’s a brief description of each of the new eight engine parameters for modern engines:
Sequence IIIH – Requires 33 percent improvement over GF-5 for oxidation and deposits.
Sequence IVB – Provides improved valve train wear.
Sequence V – Ensures substantially reduced sludge and varnish.
Sequence VIE – Requires 19-39 percent improvement in fuel economy, depending on oil viscosity.
Sequence VIF – A new minimum fuel economy test for 0W-16 motor oil only.
Sequence VIII – Improves GF-6A corrosion.
Sequence IX – Verifies minimum level of LSPI protection.
Sequence X – Assures less timing chain wear.