Best oil for older bottom end
01-25-2012, 07:17 PM
#21
Haven't read anything about it. How many miles? They all break down eventually. As you know, that's why we change the oil. If it's breaking down early, then that is good info to know & I'll look for a better oil when my green GC stash runs out.
The issue is that German Castrol is now Castrol Edge & none of the new blends are the original "green stuff" German Castrol 0W-30. Several suitable replacements have been tested. Agreed, the current GC (Castrol Edge) & Mobil 0W-40 are on the list of good replacement options.
Also, earlier I related 5W-30 to Castrol & it should have read 0W-30. I had 5W on the brain from discussing the Pennzoil.
The issue is that German Castrol is now Castrol Edge & none of the new blends are the original "green stuff" German Castrol 0W-30. Several suitable replacements have been tested. Agreed, the current GC (Castrol Edge) & Mobil 0W-40 are on the list of good replacement options.
Also, earlier I related 5W-30 to Castrol & it should have read 0W-30. I had 5W on the brain from discussing the Pennzoil.
No its not because I bought some from autozone in october and I know pep boys still has it. Still in the black bottle, labeled syntec and still made in Germany
01-26-2012, 12:52 PM
#22
I promise you...that particular "made in Germany" syntec is not the original "Green stuff." That is the new "Syntec." It is not the same blend. So, when we are talking about original German Castrol we are not talking about the new German Castrol. Agreed, the new German Castrol remains until it leaves seller stock, then it becomes Castrol Edge. The original GC has been sold out for years.
The yellow tested well, just not as well as the original. Am not so sure about its' next morph to Edge. Seems each rebottling leads to a lesser quality. Was sorry to hear that the Edge was losing viscocity early. Am gonna keep a close eye on UOA's from Castrol Edge.
01-26-2012, 03:00 PM
#24
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I've been using Amsoil 10w30 forever, but recently switched to there Z-rod formula... same as the dominator racing oil so LOTS of zinc, the difference being the added detergents. i'm not sure if its me or the oil.. but i notice a little bit less chatter in the valve train after warmup.
01-27-2012, 05:59 PM
#27
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Has anybody used the Royal Purple HPS? I found this lab test and the results look good.
Royal Purple 10W30 HPS (High Performance Street)
Silicon = 7 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 46 ppm (detergent/dispersant)
Calcium = 3626 ppm (detergent/dispersant)
Barium = <1 ppm (detergent/dispersant)
Total detergent/dispersant = 3676 ppm
Zinc = 1774 ppm (anti-wear)
Phos = 1347 ppm (anti-wear)
Moly = 189 ppm (anti-wear)
Total anti-wear = 3310 ppm
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 10.2 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
I ran Mobil1 but it was on the thin side so i switched to Castrol but was thinking i might try this out next oil change. The numbers look good but wanted to know if anyone has used it? or would recommend it?
Royal Purple 10W30 HPS (High Performance Street)
Silicon = 7 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 46 ppm (detergent/dispersant)
Calcium = 3626 ppm (detergent/dispersant)
Barium = <1 ppm (detergent/dispersant)
Total detergent/dispersant = 3676 ppm
Zinc = 1774 ppm (anti-wear)
Phos = 1347 ppm (anti-wear)
Moly = 189 ppm (anti-wear)
Total anti-wear = 3310 ppm
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 10.2 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
I ran Mobil1 but it was on the thin side so i switched to Castrol but was thinking i might try this out next oil change. The numbers look good but wanted to know if anyone has used it? or would recommend it?
