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I'm going on a 5 hour drive next week, so i figured this would be the perfect time for a fuel system cleaner. Picked up my favorite Berrymans bottle, but now i'm curious as to "how often is TOO often"? I did the last application 7 months ago. I plan on using the whole 16oz bottle with 16...

So i took my first sample happily to the post office (even took that "nothing wrong here" letter from Blackstone's webpage) and they STILL say it's hazardous. Funny thing was, ALL of the postal employees wanted to hear the manager tell me it was unsafe. Like they're exposing the vile oil mailer...

Does it matter for a synchro gearbox to have a limited slip gear oil, or even the limited slip additive? My question comes from worry about picking the "wrong" gear oil and having synchro issues. Since the LSD lubes are friction modified and present less of a chattering effect in clutch diffs...

http://www.mkiv.com/techarticles/filters_test/2/index.html They compare K&N, Blitz, APEXi and HKS using gauze in the ductwork and on the dyno. Pretty interesting, albeit short, read. ferb!

'92 Mazda 626 has 83k miles on the original fluid in the transaxle. Is this "too high" to do a first fluid swap? The wives tale on ATXes is to not do a flush after a certain number of miles because it might pull gunk off that can clog. But not much to glum up in a MTX. The gearbox action is a...

We have all heard the argument of "too big of exhaust pipes reduces low-end torque". But does anyone have dyno sheets to prove this? And not just you personally, but online have you stumbled across these. Also want to make sure i know why this "might" happen. During the overlap of exhaust and...

Buddy is putting a TH400 on his well-warmed 402 Olds and wanted recommendations on fluid. He was thinking of going Redline D4-ATF, but at 90 bucks it's a little pricey. My idea (run it up the flagpole) is to run Pennzoil or Chevron Supreme for the same time as an OCI, and decide if the fluid...

Anyone know off-hand if the typical "GM manifold gasket leak" affects supercharged variants? I checked my overflow tank and it was a little lower than i last remember. But everything i can find online talks about the standard 3800 Series II (VIN K) not the supercharged (VIN 1). On the few posts...

i noticed (or at least didn't see) the GC posts about the mass spectrometry being gone. Did anything ever happen with this, or did it just kinda fade away when the guy disappeared? ferb!

My theoretical tribology isn't quite good yet, but a hypothetical based upon this. If 5w-30 has no VIIs, what does 10w-30 use as a basestock? It has a lower VI but the same HT/HS Vis. Is it simply just a 'thicker' (when cold) POE molecule? ferb! edit: for clarification [ January 23, 2004...

Since i've been reading quite a bit about Redline and the polyol esters, anyone know references about jet turbine oils (the next logical step, right?) Polyols are always mentioned in the same sentence, but i haven't a clue about them. Do they have much additives, general sump temps in a jet...

Taken from an Evo board My take is that the Oxidation, Nitration, and Sulfurization are entirely too high due to either excessive blowby or just all around super-high temps. The oil pan is butted up next to the downpipe so that could lead to high sump temps. The strange thing is the way the...

So i was wanting to look up the CCS values for Mobil 1 / Delvac 1. But they're not on the Mobil datasheets!!! Am i losing my mind (at a very young age) or did these get recently deleted? ferb!

I was checking out the specs of Schaeffer's 204S and it mentioned a NOACK D-5800 of 2%. How on earth does this happen?? I figured a 100% PAO/Ester based would be less apt to evaporate. But even the 100% synthetic Schaeffer 5w-30 is up at 9%. MolaKule, chance you can explain this? ferb!

There is a new store around that is geared to the import tuner kids. The store happens to be owned by (from what they say) a leading parts distibutor in japan. They have the "Straight from Japan" oils section, which has factory Toyota and Honda oils. Along with a Mobil 1 "Road Master" 10w-30...

In the Mercon V ATF thread Pablo mentioned using the Amsoil ATF and the Lubegard M-V. After looking at the M-V "cycling test" on the Lubegard page it was used on a 700R4 in a '91 Camaro (and even that was misspelled). And then they compare the shift speeds to a GM reference. Anyone know...