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Saab shows drop in mpg compared to price and performance http://www.edmunds.com/insideline/do/AutoshowArticles/articleId=108748 E100 http://www.greencarcongress.com/2006/02/gm_introduces_4.html In the UK we have 5% ethanol (Tesco 99) and did well in these tests...

Will GTL need an ester for additive solubility?

Jag Not sure whether this helps http://www.noria.com/learning_center/category_article.asp?articleid=646&relatedbookgroup=OilAnalysis

AA Motoring Trust in UK Structural failures in tyres are responsible for less than four per cent of accidents. These are usually caused by a tyre running for an extended period at low pressure or suffering damage before the accident occurred.

I find these 3 sites link the various appects involved http://faq.neons.org/faq/FAQ_LE.html http://www.v8914.com/Horsepower-v-torque.htm http://www.yawpower.com/tqvshp.html

As long as there is lead in AvGAS they won't use 100% PAO oils. Anyone have any information as to whether this applies to lead replacement additives?

On the contrary, the attraction of the Ester molecule to the metal will slow that “hydrodynamic” phenomenon and may cost horsepower. Is there a link between this and higher HTHS as HTHS increases when comparing Silkolene, Motul and Redkine

Perhaps a time warp Supreme Engine Oils are recommended for use in veteran, classic and vintage cars, motorcycles and tractors, where engine design and tolerances prohibit the use of modern multigrade, high additive level oils. Modern dispersant additives keep combustion chamber contamination...

Daily driver was a 71 BGT now Rover 4.6 Roadster. Just in time for this event http://www.britishv8.org/2006-British-V8-Car-Meet.htm

Zinc dialkyl dithio phosphate (ZDDP, ZnDTP, or ZDP) is a family of zinc salts of dithio organophosphates. They are soluble in nonpolar solvents, so they easily dissolve in mineral and synthetic oils used as lubricants. http://en.wikipedia.org/wiki/ZDDP

Dave Doug Hillary posted this when discussing our old cars and oil Quote I did my Engineering training - six years - with BMC - in NZ and in England (Stewart & Ardern, "The Vale" Acton - 1962-63) The export prototype Mini was my first development project in NZ in 1959 The tragedy of BMC was...

Makes sense as from same site oil sourced from Gulf Coast, for example, could be thick when cold, yet unable to protect the engine adequately when hot. By contrast another oil from Pennsylvania, which was lot easier to pour when ambient, would be just right for automotive engine when hot. The...

From Synlube site "here is in brief what has happened over the 70 years. SAE 60 grade was added as the need for thicker oil in aviation and heavy duty engines became apparent. SAE "W" grades were added in 1952 as it became apparent that engines could not be started in Cold Winter Climatic...

I only joined the car owning society when 20W50 was in vogue. Is there any connection to the xxW terminolgy, when a straight 20wt was used in winter and a higher wt in summer. Did a 20wt originally meet the API specification for a 20W, Pre Redline.

Halfords in the UK provide a guide to Oil choice, unless you own a Ford or a Classic (20W50) its xxW40. The xxW depends on FI 5w/30 part synthetic-suitable for the latest high efficiency engines including all modern Ford from 1998 on. 10w/40 part synthetic-suitable for most modern...

Penrite australia "guide to engine oils" indicates they developed a 10W50 semi to replace a 10W30, comment upon choice of additives, and indicate base oils used. http://www.carwashmag.com/pdf/sept_2005/thicker.cfm

Any idea whats in this additive? http://www.team-zx1.co.uk/noflash.cfm (I have used X1 super lube and can vouch for it's effectiveness - it reduced cold start noise the engine ran cooler and I get slightly better fuel economy.) When you strip down an engine treated in this way the cylinders...

View from Penrite Zinc and Older Cars http://www.penrite.com.au/nextpage.php?navlink=db/bulletinview.php&id=27

Independent studies have indicated that up to 50% of wear on engine components occurs during the engine start-up, before oil pressure can be established by the oil pump.

http://www.carwashmag.com/pdf/sept_2005/thicker.cfm