What type of OIL do you use???
You sounds like you're from the old school, with the thinking that wider viscocity ranges are bad. With conventional oil, a 5W-40 isn't even possible. Thanks to synthetics, its not a problem. You can have your cake and eat it too. Oil is full of additive packages these days, which is one of the reasons its so good. Look at some newer cars from Mercedes and VW, many reccommend a 0W-40 or even somtimes 5W-50.
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Last edited by tom falco; Jan 2, 2010 at 08:31 AM.
Oh and FYI, I googled you and didn't find a damn thing.
Last edited by tom falco; Jan 2, 2010 at 09:04 AM.
i was always lead to believe that the W is weight not winter
well thankfully my oil change will be done next friday when i pull the heads and cam. so let me get this right cause i really don't want to **** anything up next weekend, i should be using a non-synthetic 5W30 for the first 100-200 miles to break in the new cam and valvetrain? The Best V8 Stories One Small Block at Time
I only read one or two people in this thread say they're running german Castrol. I thought it was the best thing since sliced bread for the LS1. It's what I use, along with ACDelco oil filters.
Anyway, like stated earlier, I believe the frequency of the oil changes is just as important as the oil used. Keep it clean and fresh and you're less likely to run into problems. This is just my personal opinion and since I work on GM's everyday I've seen my fair share of vehicles that get neglected from regular oil changes.
i was always lead to believe that the W is weight not winter
well thankfully my oil change will be done next friday when i pull the heads and cam. so let me get this right cause i really don't want to **** anything up next weekend, i should be using a non-synthetic 5W30 for the first 100-200 miles to break in the new cam and valvetrain?People are just too lazy to research what the stuff is and the fact that it measures more like a 10W-40. And often too foolish to realize that you’d want a lighter weighted lubricant when the engine is cold.
As far as I’m concerned, there’s German Castrol 0W30 and then there’s all the lesser oils on the market.
In my high milage stock LS1, the common cold start piston slap knock was dramatically reduced when I changed it to GC.
By the way i have a 1ST gen BIRD. But it is a DOG i built it like YEAR ago. You know CARBS AND JUNK LIKE THAT.
Often, Auto Zone has sales on Castrol Synthetic with a filter (usually a Fram which you'll toss away...) which includes the made in Germany 0W-30. I think a sale is coming up. This is when I stock up. I like to keep about 24 quarts on the shelf.
https://ls1tech.com/forums/new-ls1-o...l-0w-30-a.html








