Cost of First Service...

[HummBebe]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by BABHUMV:
Hummer of Thousand Oaks, as stated before, provides the 1st oil change for free. But I am thinking of changing it soon myself and putting synthetic in. Any avid synthetic users out there. When should I start using it, immediately or wait for the first oil change to allow proper break-in.? I only have about 600 miles so far. Also, who has the GM number for the Oil filter? </div></BLOCKQUOTE>

See if your dealer will change it to synthetic for you.

I think someone else on this H3 forum has already done it.....I could be wrong.