Sales say "life-free." i advise you not to believe it
The day the car was bought, the sales were laughing and patting on your shoulder: the car was free for life, never mind。
You nod your head, you think you saved a fortune。
It then arrived at 80,000 kilometres, at a slow start, and the switch started to slow, and it went to the repair plant to look at the valve wear, and recommended major repairs at 12,000 prices。
That's the "life-free" line。
You think it's real, but it's the design life of a car company, not your life
Frankly, this is one of the biggest maintenance techniques in the entire automobile industry。
The original meaning of a lifelong exemption is that no mandatory replacement is required for the design life of the vehicle as a whole, whereas the design life defined by the enterprise is usually 15 years or 240,000 kilometres and is used under the conditions of soft driving, flat-speed road conditions and regular inspections。
But this is how you drive
In the mornings and nights, the peaks are blocked, the summers are tanned in the parking lot, sometimes rushing to overload, and the short-distance off-duty engine is running out of fire... These conditions are folded together, and the rate of ageing of transformer tank oil is well above the pre-set plant. Once 100,000 kilometres had arrived, the batch of bmw zfs, japanese ats and mass unions, which were not maintained, began to cause problems, and the number of receptions in the workshops peaked every year at this node。
Avoidance means never forever, never too often, but never never forever。
It's..
Four gearboxes. It's not the same thing with the oil cycles. Points
The easiest mistake for many drivers is to take a single "40,000 km for oil" kit on all gear transformers, either to pay for it in advance or to drive it over time。
Manual gearbox mt: save your breath
The structure is simple, the pure gear is bound, there is no hydraulic switch and the fluid is the smallest burden. With full-synthetic oil, 60,000-80,000 kilometres for one full stop would be enough, and there would be no noise. Only perennial mountain climbs, heavy loads, frequent semi-fragmentation are exchanged up to 40,000 to 50,000 kilometres。
6at/8at automatic: 60,000 km of red wire
The at transformer is supported by precision valves and oil pressure controls, which require the highest quality of fluid and are the most vulnerable to drag. Sixty thousand kilometres are gold nodes, and more than 80,000 kilometres of fluids begin to become significantly oxidized and thin, impurity piled, and valves are irreversibly damaged if pulled, with little maintenance to repair and repair. The old paragraph 4at/5at is much more condensed, and it is recommended that it be changed from 40,000 to 60,000 kilometres and not wait。
Cvt ungraded speedbox: definitely not more than 60,000 km
It's the one in all the gear tanks that fears dirty oil. Steel belts and cones are transmitted by friction, and it is a real vicious circle to continue to produce small metal powders that are mixed into the fluid, the more dirty the oil is to wear and the more impurities it is to wear. Many day-to-day car owners feel that cvt is smooth, driving to 100,000 kilometres and suddenly slid, and looking back, they never change the oil. If there is much traffic in urban areas, it will be more stable to change 40,000 to 50,000 kilometres ahead of schedule。
Double-up dct: dry-wet, don't mix
It's the easiest place to be fooled by a repair plant. The dry double-disconnected transformer tank oils are ducted to lubricate gears, do not participate in dispersive heat transfer pressure and are checked once at 60,000 to 80,000 kilometres, so that the oil is not changed and there is no need to be marketed for regular compulsory maintenance. The wet double-fragmentation is completely different, with the fragrance in the oil, high temperatures and high consumption, with 60,000 kilometres to be replaced and 50,000 kilometres to be replaced if the road is in a bad condition。
The sale of dry double coupons is costly; the wet double coupling is long-term, and sooner or later it will slide。
It's..
Gravity change or machine change. This pit is deeper than oil change
To be honest, this is the easiest place to make money。
Gravity-for-oil: similar to machine oil, naturally refuelling and refilling, with a replacement of about 40 to 50 per cent. Cheap, moderate and non-shock valves are suitable for vehicles that are in a normal state of fluids and maintenance on time。
Recycler for oil: the off-site takeover road can be replaced by 80 to 90 per cent, which appears to be more complete and cleaner。
But there's a repair plant here that won't tell you on its own: more than 80,000 kilometres of cars that never change gear tanks, and it's strictly forbidden to use recyclers for oil。
The long-term oil-free gear tanks, internal oil sludge and metal shredding have accumulated in large quantities, and old valves have adapted to the condition of dirty oil and maintain a fragile balance. At this point, using a high-voltage cycle machine, all the oil mud that has been deposited for many years is washed up, the oil lanes and the card-barrells are blocked and, when replaced, the failure lights are activated on the day, with a serious direct puddle。
The number of vehicles brought into the workshop every year for this reason was not small, and the owner thought that it had been completely maintained, resulting in the failure of a speedbox。
The correct approach is that vehicles that have not been replaced over time and whose fluids have become blacked out, are replaced only by gravity, with a second gravitational change at a distance of 1,000 km, gradually dilute old oil, slowly restore their state, and cannot be mapped thoroughly。
It's..
If you don't see the miles, check these five signals
The fact that some cars drive fewer cars than 30,000 kilometres in their four or five years of age, but the fluids have become completely obsolete because of long distances, frequent cold start-ups, and never hot cars, depends on the fact that the number of kilometres is completely incorrect:
Low-speed convulsions or break-ins, and sudden pulls of the body during the rise-and-down are typical reactions to unstable oil pressure。
The change of gear is delayed, the gas is moving up, the speed of the vehicle cannot be kept up, and the power links have a clear sense of drag。
Hanger twitching, space thawing, and a d block stomping on the brakes shivering, presumably with insufficient hydraulic pressure。
The flat speeds were humming and suffocating, and the fuel consumption was slightly higher than before。
The summer traffic transformer box has a high temperature and the dashboard has temperature tips or power limitations。
Any one of them, however many kilometres it runs, first examines the colour and smell of transformer oil. Normal fluids are red or light red, slightly transparent, hairy, cuisine-ympic, with visible particles should be replaced。
It's..
The repair plant won't say three of them when the oil is changed. Yes
The filter core must be changed together
At, cvt, wet double ligation have built-in filtration cores that specialize in filtration of metal scrap and oil sludge. The oil is changed without the filtration core, and the new oil is recycled through the dirty filtration core and contaminated thousands of kilometres again, equal to the white switch. More than 60,000 kilometres of oil are replaced, together with cores, seals and shell pads, most of which are separately charged and are not offered。
We can't change the oil
There are significant variations in the viscosity standards, friction coefficients and temperature tolerance levels of different transformers, and there is no one-size-fits-all transformer oil. When you see the repair shop recommending "this oil is for anything", you can change the store. Prior to the note confirmation of the original plant certification model, mercedes has a mercedes standard, which is a daily one, and the difference in one word is likely to replace the anomaly。
We have to get a hot car to check the oil
The standard oil spot for transformer tank oil must be tested in the heater state, with deviations in the cooler view. The oil is too heavy, the heat of the car is too high, the oil is too low and the wear and tear will accelerate in any direction. If the oil table is changed or not checked, it is half-maintenance。
It's..
A watch
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Remember one of the core principles: the fact that new cars change gravity on time and that old ones never change machines does not prevent maintenance from not checking。
The man who was deceived by the sale of that sentence learned a lesson: every good that was sold to you when he bought the car was probably true, but what he didn't say was the best thing you should know. In the case of gear tank oil, it is better to ask the repair plant for sales than to find out its own rules before stepping into a "life-free" pit。
