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Old 07-31-2001, 01:04 AM
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ML Dude ML Dude is offline
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Join Date: Mar 2001
Location: Southern California
Posts: 373
Oh No, an Oil question

All this x66 demystifying got me thinking about how chemicals combine in my engine, specifically in the oil.

One of the little things I do is vary my oil viscosity with the seasons. In the winter, I use a 5-30 or 10-30 multiweight oil. In the summer I'll go with a 10-40 or 20-50 weight. Since I buy the Castrol Syntec which is on sale and stocked, I end up with quarts of all of these weights.
Up until the x66 debate, I never thought twice about topping up with whichever quart I had handy. So my oil is "blended" with regard to weights, not brand. In fact, I like making what I call Syntec blend plus, thats 4qts of full Syntec and 4.5 quarts of Syntec blend.

Does anyone think that is harmful and something I best avoid?
Ed "Don't Benz's just feel better..."

Current wives...
2000 ML430 Skyview "The Mel"
2000 CLK430 Cab "The Cab"
85 300D Turbo "The Diesel"

Past wives...
92 300E
85 190E

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