When I switched my SHO over to GC from 10w-30 GTX; I noticed nothing. Perhaps the engine was a bit smoother up top, but otherwise...nah
Can German Castrol 0w30 Cause Sluggishness Over Mobil1 10w-30 ?
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Same on my '00 Monte 3.8, maybe a little quieter, maybe, but no power difference.
I just switched from GC to Delvac 1300 and although the Delvac is thicker, I am getting better gas milage and the motor is smoother.
Don't have the answer to this but has anyone thought about moly being one of the differences between GC and Mobil 1. I am no oil expert but isn't moly a friction modifier? I would think this is also why redline uses so much moly. Maybe one of the oil experts on the site can tell us more.
So run it a qt. low that will make it feel fast right! That's if it feels like your driving with the hand brake on.
[ August 18, 2004, 07:04 PM: Message edited by: dropitby ]
[ August 18, 2004, 07:04 PM: Message edited by: dropitby ]
Glad to see this post resurface again. I found out later that the NEON engine is the only one left that runs the crank into the pan, or without a windage tray. The Northstar is doing just fine on the GC at the moment. The sluggishness went away and stayed away after the second oil change.
Has anybody noticed that the SLX produced the highest number and size of metal particles in oil filter in this study. What the ****?
For some lame reason, I almost feel like trying a 5w20 as a butt dyno test, but never. I'm sure my Schaeffer 10w30 is plenty slippery.
My 2001 5.3l Sierra ext cab 4x4 just turned over 60,000 kilometers (38k). I have logged every gas fill up since new, have used the following 5w-30 oils for a minimum of 3 oil changes each (close to 1 year each), GM, QS syn, RP syn and now GC 0w-30 in that order. The best mileage by a narrow victory is the german castrol. The other 3 oils were pretty consistant among the three. As far a sluggish, no, my seat of the pants meter doesn't register any different.
I am into the second change of GC in my Maxima and the only difference I thought I detected was a little engine noise. The prior oil was Chevron Supreme 10W30. Gas mileage has remainded the same and the engine doesn't "feel" any different. The engine is a 3.5 l V6.
I didn't really notice any difference in performance between GC and M1 in my 4Runner, but the fuel economy is less I'm sure. I don't think the engine is any quieter or any harder to start in the cold with GC either...
I really don't know how you would do this test and have it work if you tried to normalize for oil temperature. Different oils do show large variances in oil temp with everything else remaining the same. What to do?
You've noticed a difference via the "butt dyno" versus the EP that you had in there?
I finally found 4 quarts of The Green today and I'm considering using it when I change the 10w30 EP in my '01 Infiniti. More out of curiosity than anything, as I really don't believe my particular Nissan V6 likes a thick 30 wt. My original plan was to use Mobil 1 0w30 with two qts. of GC-gold this winter. I've had good success with the 0w30 from Mobil 1 in the past.
I finally found 4 quarts of The Green today and I'm considering using it when I change the 10w30 EP in my '01 Infiniti. More out of curiosity than anything, as I really don't believe my particular Nissan V6 likes a thick 30 wt. My original plan was to use Mobil 1 0w30 with two qts. of GC-gold this winter. I've had good success with the 0w30 from Mobil 1 in the past.
Butt dyno with my sons Ford Focus ZTS 2.0 DOHC tells me a noticeable difference with GC, as well as a drop in MPG. I reported this a year or so ago. My Ford work V-8's and V-6's loved the stuff, with little if any noticeable change in performance or mpg, but the 2 liter 4 banger is another story
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