Oil Differences

quote:

Originally posted by SPIKE

I have always used Volvo synthetic SAE 30. Hard to find any now, so I will get the synthetic 10W40. Question is I still have one qt 30 left over. Would it hurt to use that one qt with 4 qts of 10w40?






I just picked up some oil at my local VP dealer, and asked the same question. Can I use my leftover couple quarts of VP sythetitc 30 weight with the VP synthetic 10w-40 I just bought. Mechanic there said no problems at all.

When I change my oil, I have to suck it out through the dipstick tube, and can't get all the used stiff out. What I typiclly do is after I suck out all I can, then I "waste" a quart by pouring in a quart, and then again sucking out all I can again. I figure this will help flush out more of the old oil. I'll probably just use my leftover quart(s) of 30 weight as the sacrifical stuff to help flush out the old oil. Then refill with the 10w-40.
 
I wonder if the change is based on feedback from customers - - the only place I've ever seen straight 30W full synthetic oil is directly thru Volvo (and I simply refuse to buy oil from a motor manufacturer. . .'never bought oil for the Mustang from Ford!) and Amzoil. Been using the Amzoil product for years.

Is the change to 10w40 an either/or 30w, or a full change in recommendation? (of course, the scheptic in me says that if VP is only selling the 10w40 now, THAT'S their recommendation . ....)
 
I use to use the Volvo Sae 30 synthetic however stopped as it was getting to expensive. Over $32.00 a gallon rb2@gr5t15gls. Do the math. Also I was advised that I do not put enough hours per year on my TAMD74P's to benefit from it. I have since switched to Shell Rotella 15w40 as it meets the requirements and the temp range.
I think the main reason they deleted it was due to low purchases by consumers due to cost.

I have an do continue to take oil / coolant / trans oil samples each year for analysis. Started in 2007 when I purchased the boat with 225hrs on them. All look good!
 
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