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Java Junky · 01-29-2007, 12:48 PM

Dunno Scott, not straight synthetic, but simply to see whuddud happen I'd switched a pair'a high mileage cars over to a synthetic/petroleum mix n' neither one did anything except maybe raise it's idle (it was so slight on the 135+ thou Bronco that no readjust was necessary, but the 165+ 'Yota did hafta be reined in a bit)
I don't doubt that in certain full synthetic switches with higher mileage vehicles you could run into problems, but I suspect that they'd be the exception.
I'm with you on the extra time to allow for more complete drainage (especially when the temps r' in the cooler moods) n' I'll add to that that dependin' on the vehicle's oil pan, you might even wanna jack n' tilt the car to put the drain side at the low end.
For years I've made a habit of runnin' one quart of synthetic with the remainder of the oil petroleum based. The synthetic is tenacious when it comes to clingin' onto parts. So much so that with a synthetic/petroleum mix the synthetic handles the lubrication while the petroleum is more of a heat-transfer component. If you switched back to petroleum base after runnin' synthetic, it'd probably take you a couple'a oil changes before you got rid of all the synthetic.
I've run that mix in every bike n' car I've owned for more years than I wanna admit to n' except for one Escort lost to an accident, they all seem to live to a ripe ol' age.
That 165+ 'Yota got sold to a guy at work. He'd show up every once in a while with his boat in tow. So, it works for me anyway.
Be well.
Java

01-29-2007, 12:48 PM	#15 (permalink)
Java Junky Resident Curmudgeon Join Date: Jun 2005 Location: Joisey Posts: 5,482	Dunno Scott, not straight synthetic, but simply to see whuddud happen I'd switched a pair'a high mileage cars over to a synthetic/petroleum mix n' neither one did anything except maybe raise it's idle (it was so slight on the 135+ thou Bronco that no readjust was necessary, but the 165+ 'Yota did hafta be reined in a bit) I don't doubt that in certain full synthetic switches with higher mileage vehicles you could run into problems, but I suspect that they'd be the exception. I'm with you on the extra time to allow for more complete drainage (especially when the temps r' in the cooler moods) n' I'll add to that that dependin' on the vehicle's oil pan, you might even wanna jack n' tilt the car to put the drain side at the low end. For years I've made a habit of runnin' one quart of synthetic with the remainder of the oil petroleum based. The synthetic is tenacious when it comes to clingin' onto parts. So much so that with a synthetic/petroleum mix the synthetic handles the lubrication while the petroleum is more of a heat-transfer component. If you switched back to petroleum base after runnin' synthetic, it'd probably take you a couple'a oil changes before you got rid of all the synthetic. I've run that mix in every bike n' car I've owned for more years than I wanna admit to n' except for one Escort lost to an accident, they all seem to live to a ripe ol' age. That 165+ 'Yota got sold to a guy at work. He'd show up every once in a while with his boat in tow. So, it works for me anyway. Be well. Java __________________ In life-long pursuit of that most mythic of beasts: the ever-elusive perfect corner. Well . . . that, r' at least a whole lodda clear spin-out room.