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Which method does Eneos use to determine VI? At least one of the Eneos oils are described as "hydrorefined base oils" which would be a group III. Could you tell us the base oils for each of their motor oils? They look like pretty good oils based on description and typical properties. Could you tell us what the recommended oil change intervals are and what the warranty is? Could you share a BBB report? Any direct comparisons with other American oils by name?
in the eneos brochures they test their oil against castrol, redline, amsoil, and royal purple. nippon eneos regards castrol as one of the best oils on the american market, but their testing shows better gains with eneos oils. the first dyno event challenge ive been a part of was with Hondoctors at Leading Edge Performance on a dynojet dyno. the test vehicle was an Acura Integra with an 1.8 litre vtec turbo charged engine that baselined at 550 hp with castrol 5w20 in it. the castrol was fresh for the base runs. we then pulled the vehicle back, drained the castrol, then filled with eneos 0w50. the oil, air, and water temp were within .2d of the castrol runs. the barometer was very close as well. we then made 3 runs, each seeing both a hp and tq improvement, but the best run made 19 hp with 15 ft-lbs of torque. no changes were made to the ecu, or engine setup. i will try to get the dyno sheet up asap to support my claim.
and yes, this oil has had color and odor added to it. grab a bottle of mobil 1 and smell it. it smells like straight dino oil. i know, they added smell to theirs as well, but why would they make it smell like conventional oil? its a different, far superior product right? so why not differentiate it by giving it a better, non-natural smell?
i'd like to point out that in 2002 Shell Oil started to buyout Pennzoil. share holders dont usually sell a company if they feel they can compete in the market place without any additional expenditures. the goal is to keep operating costs low to maintain a high profit margin. so, i would speculate that pennzoil was sold because they had inferior technology in one or more aspects of the oil refining business and chose to sell to a more advanced company. and shell is a far more advanced oil company because they participate in motorsports that are more driven for advancement within the automotive community. America's prized motorsport is Nextel, where nothing from the race car finds its way into consumer level cars. just think, if it werent for Formula 1 we might not have abs, dependable fuel injection, the monocoque chassis, improved fuel effeciency, applied aerodynamics, or the hans device
(earnhardt sr could have used one). what has nextel given us? possibly a muscle car with the largest factory wing ever installed onto a producation car.