ENGINE OIL

2003 Hummer H2

Tiny

luda81

July, 31, 2010 AT 1:30 PM

Engine Performance problem
2003 Hummer H2 V8 Four Wheel Drive Manual 75000 miles

My truck has 75000 miles and I have been using regular oil. Is it too late to switch to synthetic oil?

FOUND 16219 RELATED QUESTIONS

1 Answer

Tiny

Dr Loot

October, 24, 2010 AT 6:22 PM

No!

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