Synthetic Oil Cocktail - Toyota Yaris Forums

nsmitchell · 04-02-2007, 09:18 AM

I needed to change my oil. (10K miles) I had 2 qts of Amsoil 0W-30, 1 qt of Mobil-1 0W-30, and 1/2 qt of Mobil-1 5W-30 laying around. I used a Napa Gold filter and in went the oils. It seems to run just fine, but I wanted some input from y'all on this. The 5W-30 was about 4 years old but was kept inside my house.

BTW - I overheard the Napa guy tell a customer to wait 'til you get 30K miles, then switch to synthetic oil, but you can never go back to conventional after that. LMAO! I wanted to ask him some more questions about synthetic oils but I was in a hurry. My brother was with me, being an ex-mechanic he was interested as well in what BS this guy was spreading on the subject. Where do they dream this stuff up?

04-02-2007, 09:18 AM	#1
nsmitchell View User's Garage Drives: LB-Auto-PWR-ABS-Cruise-Springs Join Date: Aug 2006 Location: Richmond, VA Posts: 1,065	Synthetic Oil Cocktail I needed to change my oil. (10K miles) I had 2 qts of Amsoil 0W-30, 1 qt of Mobil-1 0W-30, and 1/2 qt of Mobil-1 5W-30 laying around. I used a Napa Gold filter and in went the oils. It seems to run just fine, but I wanted some input from y'all on this. The 5W-30 was about 4 years old but was kept inside my house. BTW - I overheard the Napa guy tell a customer to wait 'til you get 30K miles, then switch to synthetic oil, but you can never go back to conventional after that. LMAO! I wanted to ask him some more questions about synthetic oils but I was in a hurry. My brother was with me, being an ex-mechanic he was interested as well in what BS this guy was spreading on the subject. Where do they dream this stuff up? __________________ Other car is a 2005 Mustang Convertible 4.0L V6 Manual - Legend Lime Get YarAss in gear! RIP - Casey Tatum Last edited by nsmitchell; 04-02-2007 at 11:08 AM.

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