Originally Posted By: Brigadier
Originally Posted By: fourside
Originally Posted By: Brigadier
I have noticed that on a thicker oil - T6 or Delo Synth 5W40, the engine in my Colorado which is spec'd for GM6094M 5W30, is much quieter at start up, especially the DOHC chain tensioner. I know that can't be, right? I am hearing things too?
You're certainly not a liar just because you've noticed 0w20-spec'd cars puffing blue smoke - the comment that you must be seeing things was surely a joke. That said, the main problem is just that we can't really learn much from looking at the average person's tailpipe. It has to be assumed that most of them don't really know how to take care of their cars regardless of what the manufacturer specifies. I've seen every type of car spec'd for a wide range of oils puffing blue smoke - it just doesn't tell me much.
Also, ironically, my car in the US is spec'd for 0w-20, and the ultra-thin JDM "0w-7.5" (estimated) stuff I put in it recently is actually running a little quieter/smoother if I must say. I'll be doing a UOA next month and we'll see how much damage I've done.
Well, if I misread someone's post, I apologize.
I do know that seeing blue smoke out of a tailpipe doesn't necessarily prove anything, which I indicated in my post. But, I was just struck on how many of these late model Japanese 20W spec'ed cars were doing this.
Yeah, who knows? I feel like I notice a lot of Euro cars doing the same thing, and as far as I know most of them aren't spec'd for 0w-20. I actually really haven't noticed what you have about the Japanese cars, but I'll keep an eye out. Neither one of us is lying!
Originally Posted By: fourside
Originally Posted By: Brigadier
I have noticed that on a thicker oil - T6 or Delo Synth 5W40, the engine in my Colorado which is spec'd for GM6094M 5W30, is much quieter at start up, especially the DOHC chain tensioner. I know that can't be, right? I am hearing things too?
You're certainly not a liar just because you've noticed 0w20-spec'd cars puffing blue smoke - the comment that you must be seeing things was surely a joke. That said, the main problem is just that we can't really learn much from looking at the average person's tailpipe. It has to be assumed that most of them don't really know how to take care of their cars regardless of what the manufacturer specifies. I've seen every type of car spec'd for a wide range of oils puffing blue smoke - it just doesn't tell me much.
Also, ironically, my car in the US is spec'd for 0w-20, and the ultra-thin JDM "0w-7.5" (estimated) stuff I put in it recently is actually running a little quieter/smoother if I must say. I'll be doing a UOA next month and we'll see how much damage I've done.
Well, if I misread someone's post, I apologize.
I do know that seeing blue smoke out of a tailpipe doesn't necessarily prove anything, which I indicated in my post. But, I was just struck on how many of these late model Japanese 20W spec'ed cars were doing this.
Yeah, who knows? I feel like I notice a lot of Euro cars doing the same thing, and as far as I know most of them aren't spec'd for 0w-20. I actually really haven't noticed what you have about the Japanese cars, but I'll keep an eye out. Neither one of us is lying!
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