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本帖最后由 xiaoyujun123 于 2016-11-2 16:06 编辑
Today's Oil Goes the Distance
While the car-servicing industry is clear about its reasons for believing in the 3,000-mile oil change, customers cling to it only because they're largely unaware of advances in automotive technology. Among 2013 models, the majority of automakers call for oil changes at either 7,500 or 10,000 miles based on a normal service schedule, more than double the traditional 3,000-mile interval. The longest oil change interval is 15,000 miles for all Jaguar vehicles. The shortest oil change interval is 5,000 miles in some Hyundai and Kia models with turbo engines and Toyota vehicles that call for non-synthetic oil. Toyota has been shifting its fleet to 10,000-mile oil change intervals using synthetic oil.
"Oil has changed quite a bit and most of that isn't transparent to the average consuming public," said Robert Sutherland, principal scientist at Pennzoil Passenger Car Engine Lubricants.
Synthetic oils, such as the popular Mobil 1, are stretching oil change intervals, leaving the 3,000-mile mark in the dust. "The great majority of new vehicles today have a recommended oil change interval greater than 3,000 miles," said Mobil spokeswoman Kristen A. Hellmer. The company's most advanced synthetic product (Mobil 1 Extended Performance) is guaranteed for 15,000 miles.
Today's longer oil change intervals are due to:
Improved "robustness" of today's oils, with their ability to protect engines from wear and heat and still deliver good fuel economy with low emissions
More automakers using synthetic oil
Tighter tolerances (the gap between metal moving parts) of modern engines
The introduction of oil life monitoring systems, which notify the driver when an oil change is required and are based on the way the car is driven and the conditions it encounters. Sixteen of 34 carmakers now use oil life monitoring systems in their 2013 model-year vehicles, including all three domestic automakers. That represents a majority of the vehicles sold in the U.S.
现在的长效全合成机油跑个2万5没有问题，发动机都有sensor检测既有质量，车厂指定的保养周期肯定是尤其道理的，不会平白砸自己牌子。
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新人报道——杂果馅的凤梨酥 (2010-2-25) chloe_girl 
楼主:lsm.cathy
发表于 2016-11-2 12:52
