Search results

I just posted a UOA for this car in the UOA forum. This car runs perfectly and the old oil was clean. The T4 / Lucas combo landed the V@100c at just over 18. It has M1 15w50 in it now and a Fram Titanium filter. The M1 15w50 has a V@100c of just over 18 (no thickening additive like Lucas needed).

20 and 16 are new modern engine viscosities. Tolerances and engines are better now. In my wife’s 05 Prius with 270k if I use the prescribed 5w30 oil consumption is very significant. Bumping it to 10w40 literally solves the issue. 2005 was before 20 weight was commonplace.

The prior owner of this car used a K&N air filter and the airbox was slightly compromised imho (see video below of problem and solution) which explains the elevated Si, but this oil seems unfazed. PQ index of just 4 is awesome. This car was autocross raced 3x during this OCI, I purchased it last...

Folks are assuming that 30 is the baseline optimal oil weight and provides the best protection in all conditions for SBCs (small block chevy’s). I personally believe that, when new, 40 is the best SBC daily driver viscosity. And, that 50 has additional benefits in SBCs - especially when temps...

Oil changes are 4.5

I just bought this car Sunday and drove it home from Madison Wisconsin to Roanoke Virginia. The car runs outstandingly well, but that type of driving isn’t very relevant. If you want to bold / focus on part of my statement it should be “I will report back after our first event”.

No. 40 and 50 weight oils reduce wear, extend optimal performance life and the horsepower and fuel economy penalties are negligible.

It does. It has both digital oil and coolant temperature gauges. I have seen oil temperature is over 200, I will report back after our first event.

The car has a Dewitt 4-row Al radiator w big cooling fans and a 160° thermostat. Even while waiting in the queue with the AC on a hot day it’s not going much over 180 and during race runs I don’t think it is even getting to 200. LT1s commonly run 220+ in conditions like this, the prior owner...

Rotella T4 / Lucas went to the lab today. Glad to see the prior owner used a great filter:

GM syncromesh fluid for the trans and GM diff fluid w the diff additive. @Vermess in my original post I wasn’t asking a question. I agree M1 HM 10w40 would be a fine choice too. And, I’m confident 15w50 will excellent too. I was just sharing this T4/Lucas anecdotal info because I think it’s...

The 5w30 factory fill was prescribed to meet CAFE fleet fuel economy targets. Not to protect a 30 year old engine being run at WOT, over and over and over. In AX it'll rarely be shifted into 3rd, but it will go WOT to near the redline repeatedly. Your recommendation is valid for a commuter...

The flywheel was specifically installed for AX. Better burst accelerations, quick rev matching. This car will definitely see some track days too, it only will come out on nice, warm to hot days, there are no downsides to M1 15w50. M1 15w50 is only $27 w free shipping. https://a.co/d/ejmpyke...

Just bought this car that the owner modified over the last year for autocross racing - few small power mods and numerous handling mods. Owner says he's been running and racing it with Rotella T4 15w40 plus Lucas Oil Stabilizer. 1500 mile max oil change intervals. Says loads of racers use this...

I found 3 metal backed Fram Titanium filters for my Corvette locally. It may take me 3 years to use them. I discovered that they fit snugly in a 1 quart freezer bag, so I bagged them up, put them back in their boxes and I'm storing them in my garage. This way, even if my garage becomes damp the...

dunno

After reading your comment @michael007 I went to my Advanced Auto (1/2 mile from my house) pulled four Ti filters ALL boxes said metal backed, 50% were metal backed. I did also find a FS3980 that was metal backed. You can’t edit an original post on BITOG but Fram doing this is NOT cool. If they...

I would pass on running a Boss, it's a 46 micron filter, so the low insolubles you've been enjoying would likely go up. What filter are you running on your C6?

GM engines specd with this filter already have oil bypass valves. So there should not also be one on the oil filter. Of the 11 oil filters I cut open for this application 9 correctly did not have bypass valves and 2 (the Fram Ultra and TG) did have bypass valves present. The new Fram Titanium...

Fram says every filter is 20 micron, Mobil 1 says every filter is 30, Bosch says every Premium filter is 20, Amsoil says every filter is 20 … it’s what they all do.