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Originally Posted By: hatt Originally Posted By: CATERHAM Wow lots of oil myths being perpetuated here. -What's wrong with VIIs? Nothing, and the best are very shear stable. -While a super low Noack is nice what's the advantage vs a good Noack in the 9-11% range? Lower oil consumption? Not...

Originally Posted By: Philth I find searching this forum a bit troubling because of the specific terms it sometimes doesn't recognize. (I'm sure I'm doing something wrong, another topic) Anyway, as far as 507 oils, is there any stellar performing ones? I'm leaning toward LiquiMoly, but I'm open...

Wow lots of oil myths being perpetuated here. -What's wrong with VIIs? Nothing, and the best are very shear stable. -While a super low Noack is nice what's the advantage vs a good Noack in the 9-11% range? Lower oil consumption? Not that anyone can measure. Cleaner intake tract? Not if the oil...

It's been discussed a lot in past threads but 10W-30 is an obsolete oil grade as virtually no manufacturer specifies it any more. In fact a 10W-30 "synthetic" has never been specified as it's technically redundant. The reason is that you can formulate a shear stable 5W-30 and even a 0W-30 with...

Originally Posted By: bluesubie Originally Posted By: CATERHAM For example, the Subie BRZ/Scion FR-S twins can easily generate oil temp's higher than 230F but these cars were engineered from the get go with the 0W-20 grade as the specified lube. This is what Toyota/Subaru techs were told when...

Garak, the main point which you've determined yourself, is that the principle source of heat is not from the bearings but rather released from the process of compressing air in an air compressor. In an IC engine not only are you generating heat by compressing air (heck, in a diesel you'll get...

dailydriver, I thought we had discussed the history of the C20XE engine in my Caterham in the past but maybe not. Anyway, in the late 80's GM of England (Vauxhall) contracted Cosworth to develop a high output four cylinder 2L engine based on an existing GM block. Vauxhall was to use this engine...

Normal coolant temp's are about 195F but can rise to 210F on a hot day in close racing. I've never spun the car or driven under dusty conditions during this OCI. I did spin the car during the previous OCI on the back straight at Mosport after hitting some oil, ending up next to the inside...

Originally Posted By: Yup So, basically, I'm seeing no reason not to buy 2 jugs of 0w20 (aka "tap water")..... Yes this "tap water" is used in the Subie BRZ/FR-S sport coupes and the Lexus NX 200t turbo. And I've used it for years in my own sports/track car...

Originally Posted By: Garak Well, you're out of luck. The best I can tell you is it doesn't have the ACEA specs that the Shell, Castrol, and Mobil examples have. But, Eneos is a major company and works with Japanese OEMs, and make no slouch of a product. I would personally consider it...

Originally Posted By: fdcg27 It never gets chilly enough in most of NYS that a 0W would offer any cold start advantage over a 5W. A common misconception. The reason the OEMs specify a 0W-20 over a 5W-20 is that it is lighter at all start-up temp's, even on a hot summer day. That's because of...

Originally Posted By: d00df00d There will be condensation, and some of the additives will have fallen out of suspension. Really, are additives going to fall out of suspension any faster with oil in the sump vs the bottle if at all? And in my experience internal engine condensation isn't a...

Originally Posted By: bigt61 Good post - another positive miles/hours, not time in sump UOA. The Glen was always one of my favorite tracks, but I liked it better before the "inner loop aka bus stop" was put it. Of course for absolute white knuckle road courses, it's tough to beat Mosport - and...

I forgot to add that for a vehicle spec'd for a 20 grade, 230F is not necessarily a temperature limit. For example, the Subie BRZ/Scion FR-S twins can easily generate oil temp's higher than 230F but these cars were engineered from the get go with the 0W-20 grade as the specified lube.

Originally Posted By: Gasbuggy Originally Posted By: CATERHAM As it turned out on a very hot track day at Watkins Glen in July/14, oil temp's actually approached 110C (230F) at the end of some afternoon track sessions Is this considered hot? My caddy gets close to that in July beach traffic...

Originally Posted By: Garak No, no, a Caterham is an ideal car for year round use in Canada, right CATERHAM? I've driven the car every month of the year, but not in the same year. This has been a pretty mild winter and I was driving it up until Dec 28th when winter finally arrived. But it...

Originally Posted By: nickolas84 Regarding your air filtration I think the right question is "is it good enough?" And to me it sure is. Silicon is not that high as an absolute number neither is your iron content. You could run this engine for 50 years like this based on your usage, so why...

Originally Posted By: Sam_Julier Thank you for this informative post. I installed OT and OP gauges on the '93 240, as you suggest in your posts. It's been an eye opener. The B230F engine in the 240 easily maintains spec OP with a 2.8-2.9 HTHSV which I believe is lower than the API SG oil spec'd...

Originally Posted By: wemay Excellent write up Caterham. I have one question, as I may have misunderstood something... 28ppm Si after a 38 month interval/UOA? Not quite sure I understand you question other than to say time is not really a factor, it's actual useage that matters, or rather how...

=http://s7.photobucket.com/user/Boxgrover/media/PetersUOA_zpsj1blolbc.png.html][/URL] This is my track car and fast road use toy. There are more track days on this oil sample than I can remember. Time on this oil is just over three years at 38 months. The recommended oil grade is 5W-50 and I...