I don't know how high the bar is set....
Would a C3 Oil Protect a Timing Chain Better Than a C2 Oil?
- Thread starter jtay2024
- Start date
I don't know how high the bar is set....
I would think it broke when attempting to start, it's also often when a belt breaks.
Semantics but yeah was long time ago, could have been during parking when putting in gear/releasing clutch before handbrake, during or at start-up yes.
Early euro 4-5 engine with thin chain and up to 30000km OCI Skoda Octavia 1.6
Had somwhere around 12-160.000 km from memory.
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I have begun running Rotella T5 10w30 in several of my engines for many of the comments through this thread.
I love Rotella T5 15w40 in most of my motorcycles.
I have never been a fan of wide spans like 0w30, 0w40 or 5w40..... and certainly not 10w60 (KTM Bikes). In my experience, to get those spans result in very, very rapid shearing. (KTM wants that 60wt dumped after 500 miles. I have always wondered if a top shelf 20w50 would be better....???)
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I love Rotella T5 15w40 in most of my motorcycles.
I have never been a fan of wide spans like 0w30, 0w40 or 5w40..... and certainly not 10w60 (KTM Bikes). In my experience, to get those spans result in very, very rapid shearing. (KTM wants that 60wt dumped after 500 miles. I have always wondered if a top shelf 20w50 would be better....???)
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It almost certainly would be better, provided you don't drive around when it's below 0F.
Spot on... but all my rigs are kept in a garage/barn and they never have a cold start less than 35 degrees. On occasion I leave my truck out, but if it is going to be sub-zero, I plug it in.
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Just being technical here: the "spread" is the same between 10w40 and 0w30. The "spread" is 30 in both cases.
Patman
Staff member
I don’t think it can be analyzed that way. It’s very likely that they can make a 0w30 with less VII than 10w40.
Also technically correct! It's not quite as simple as subtracting the first number from the second.
The old "German Castrol" 0w30 comes to mind! (should have written that in the previous post...but my mind isn't as quick as it used to be)
Patman
Staff member
I’m still sad that Castrol completely abandoned that formula. It was such a unique oil in many ways and it would have been nice to see them tweak that formula and use it to this day
edyvw
$50 site donor 2025
Kyocera was supplying that Ketjenlube oligomer technology for Castrol GC and sold it to some Russian company. That is as far as I remember the story. I think the development of other additives made it too expensive. But it was oil like no other. I still think their 0W30 fills that niche spot on the market.
Patman
Staff member
It really wasn’t the same when they switched it from the green formula to the gold one though. Remember when a bunch of us chipped in to have a very expensive detailed analysis of it done? Then we discovered it was using a combination of base oils unlike any other at the time. I know a lot of people back then thought that it was just the “flavor of the month” but it really was something special, especially for being an off the shelf oil.
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I chipped in on that and found it to be very interesting. Wish we could get it today.
edyvw
$50 site donor 2025
Yeah, cheapening stuff.
But, it was expected. That oil was developed by Castrol before BP acquired it. I lived in Europe when SLX (what was GC here) was introduced and boy was that a thing.
it's one grade hot, 2 grades winter, so spread is one grade less.
So you are counting the difference between 0w and 10w as double-the-difference since there is a 5w in between, but you count the difference between 30 and 40 as one grade. I guess you can slice and dice any way you want to...it's still not precise.
No you're right, the difference between each winter grade is much larger than between hot grades.
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