Today I changed the oil in my '06 Toyota Matrix 5-speed at 21K miles. The owners manual calls for 75W-90 GL4 or GL5, so I used Valvoline 75W-90 GL5 oil. It really needed changing as the oil was dark with a metallic sheen, and these trannys have had a number of early failures (60-100K mi.) I…

GL4 vs GL5 gear oil

circuitsmith August 9, 2010, 1:56am 2

p.s.: The Valvoline is also MT-1 rated.

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