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Once a year for me as well, and is always < 5K miles.
You do not have to use Mobil-1 by the way, any synthetic with the GM spec 4094M will be fine. Pennzoil Platinum, Castrol Syntec, and Valvoline Synpower will all do fine
Wow,,I guess I'm the odd man out here!! I've had it 13 months,,had it changed when I bought it,,and just changed it for the 2nd time myself!! That's running the OLM down to 10% the first time,,1% the last time(yard too wet to get back to my other garage with the lift) Averaging around 1K a month,, and I'm RETIRED!! Drive it year round(except when the snow flies!! And this time (GASP) I used Valvoline synthetic 5w30 to give it a try!!
Last edited by itzza427; Feb 27, 2009 at 09:54 PM.
From: = From Toronto = 9/11/01 FDNY 343 Never Forget
CI 6-7-8-9-10 Veteran
St. Jude Donor '08-'09-'10-'11-'13-'14
Originally Posted by itzza427
Wow,,I guess I'm the odd man out here!! I've had it 13 months,,had it changed when I bought it,,and just changed it for the 2nd time myself!! That's running the OLM down to 10% the first time,,1% the last time(yard too wet to get back to my other garage with the lift) Averaging around 1K a month,, and I'm RETIRED!! Drive it year round(except when the snow flies!! And this time (GASP) I used Valvoline synthetic 5w30 to give it a try!!
That's sacrilegious man, don't you know that they come from the factory with Mobil 1 and you are committed to using only that brand for the life of the car or it will blow up into a big ball of flames.
by the way, I change mine in the fall before it goes into storage ( DIC usually shows 30-45% left ) and I use ( GASP ) Pennzoil myself.
Like I said earlier I change it once a year but .....first year I changed it 3 times ! The dealer gave me 3 free oil change coupons and would not extend them into the next year ! ( go figure) so.....in one year I had them change it 3 times ! Hey I can play any game as long as I know the rules. Yeah it was a waste but for them not me. And we wonder why GM is in a bad way huh?