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Has anyone looked at this Japanese company ester based cleaning additive, there are some USA case studies on the D1-Chemical site from an LA company 'Four Wheel USA' ? http://d1-chemical.com/blog/sod-1plus-english.html http://d1-chemical.com/blog/cat10/car-usa-la/

Wondering if any here have used Toyota Engine Oil System Cleaner. http://www.toyota.ca/cgi-bin/WebObjects/...anguage=english

Bought a 2003 Rav4 manual 4WD with 100K miles / 170K kilometers from an accountant friend as an inexpensive winter ride a couple of months ago and am slowly changing all fluids and doing other service to get it winterized for our occasional -40 temperatures. Didn't like the fuel economy or...

Had a good laugh from this April 1957 Popular Science article about engine sludge, was Du Pont actually a snake oil company back in the day; https://books.google.ca/books?id=UCEDAAA...dge&f=false

37-ML-90633-ML- Belongs in fuels and additives.

Hi, I'm looking for suggestions as to some Arctic grade Lithium soap based axle bearing greases for a Nissan Pathfinder good to about -55 C and without Moly additives. Castrol Braycote 610 is about the one I've found so far which looks interesting...

I'm leaning toward using 300V 5W-40 Motul oil and was wondering if others have tried this one and have some backup info UOA's as to how it stood up. It would be good to know if the oil has sufficient detergents to keep the engine clean over about a 5000 - 10,000 mile run. Thanks. .

Who are these guys and are their products any good; http://www.bgprod.com/products/engineoil.html .

Do any use Amsoil engine flush product regularly, I'd like to hear of practical use experiences of the product. Thanks. .

From reading, oil changes in most engines will only replace 80% to 90% of used oil. Any management strategies to get to as close as possible to 100% new oil after each change cycle, power flushes, a double oil change with the second oil change after 50 miles etc, thanks.

Somewhere on the forum I thought I had read a rule of thumb number such as 20% that a Dexron III or Mercon ATF cSt@100C viscosity can shear before it is considered no longer usable. Given that Dexron VI starts out lower I would expect that a rule of thumb number would also be less but do any...

Nissan requests Matic-D ATF or compatible Mercon or Dexron III oils for this trucks transfer case fluid but from analysis Matic-D starts at 7.3 cSt@100C and shears down fairly quickly in this transfer case. I'd like to find something that will stay in spec longer, but choices seem to be limited...

Which AutoRX would be applicable to cleaning a 4x4 transfer case and what would be the procedure. Thanks. .

Maybe due to the search function of the forum but I can't find any VOA's of Auto-RX or UOA's with ARX product admixed into motor oil. Patents aside I'd feel a lot more comfortable putting ARX into an engine knowing a bit more about it's composition.

I see some silicon contamination of UOA samples attributed to seals, but how is seal silicon getting into the oil. If from seals shedding some bulk excess material would most of this not be caught in the oil filter after a couple of changes or if the silicon is from some leaching process is this...

I've been noticing that most do gear oil differential UOA's when changing the oil after extended service but if wear metal increase is lineal if there is no mechanical failure, wouldn't it be better to pull a sample at 5000 - 10,000 miles into use to get a base wear number which would give...

From a Miata owners ingredient study of some common injector cleaners from MSDS information; http://www.jhodson.net/miata99/inj-cleaners.txt "I made this file to show the differences between Injector cleaners. Some cost $2 others cost $13, the mid priced bottles are a best buy. This method does...

Looking at the kauri-butanol solvency value of methyl ester (biodiesel) at about 58 compared to regular diesel or kerosene at about 35 shows that biodiesel is about twice as solvent. Here's at least one company which sells pure methyl ester biodiesel 'SSI Bio-Solvent'...

Just wondering if any know of where to purchase gallon or less, sample quantities of pure common ester base oils, short carbon chain monoesters, diesters, polyolesters, etc without additives. Thanks.

Here's a Motul Gear 300 75W-90 UOA analysis report from a 2007 Nissan Pathfinder rear differential (in Nissan Speak: 'rear final drive') with 29,500 kms on the current fill. Truck use is light duty no towing or roof rack use and driven normally at mainly city stop and go and freeway with about...