Whiteline have carried out some more laboratory analysis on the stock Diaqueen SST-F fluid today. The fluid sample was an interesting one because:
This sample is from a Ralliart Lancer
As a rule these cars load the transmission less hence wear should be lower
This car had been used on the track
Sample had completed around 50 laps
In total this sample had covered just on 6000km (not very far)
We test the fluid using a Filtegram procedure, which has a fluid sample put under a high powered microscope in controlled industry standard conditions, so that each and every contaminent in the fluid can be uniquely identified, and the source of the wear determined. The photograph that follows is directly from the microscope slide zoomed in at 500x magnification:
Oxygen sensors cannot be cleaned, that is why checking for and replacing a worn out or damaged sensor should be and important poart of every routine service.
Replacing a worn-out sensor will not only imporve a vehicle's performance and reduce harmful exhaust emissions, but it can save hundreds of dollars a year in fuel costs.
We know that an oxygen sensor detects the amount of oxygen in the exhaust gas and sends a signal to the engine computer (ECM or ECU), which adjusts the air'fuel mixture to the optimal level.
Too much oxygen in the exhaust gases indicates a lean mixture, which can cause performance problems, including misfires. Too little oxygen indicates a rich mixture, which wastes fuel and results in excess emissions. Either condition can shortned the life of the expensive cataltic converter.
Since lubricating engine components – reducing friction for smoother running and optimal efficiency – is only part of what engine oil must do, it needs assistance to fully protect an engine. That’s where the additives come in.
One of these additives is detergent. Not the type of detergent we’re familiar with in a domestic context but one containing a dispersant additive that suspends contaminants and combustion by-products in the oil instead of allowing them to settle out onto engine surfaces as sludge.
That’s why your oil may look dirty when you check it – it’s doing its job.
The Forester is an all-wheel drive Compact Sports Utility Vehicle (SUV) manufactured since 1997 by Subaru — currently in its third generation and now marketed as a compact crossover. Originally introduced to the Australia in 1998, the Forester shared its platform with the Impreza up to the third generation and now features a hybrid platform of the Japanese Impreza wagon and the rear platform of the Impreza sedan. The Forester was designed and built with four-wheel drive (AWD) as standard equipment.
The Forester was introduced at the Tokyo Motor Show November 1995, as the "Sutoriga" concept and made available for sale February 1997 in Japan replacing the Subaru Impreza Gravel Express, known in other markets as the Subaru Outback Sport.
From its introduction into Australia, the Forester has been Subaru's highest selling car, with buyers attracted by the practicality and versatility of its design, and its car-like driving characteristics. With the introdution of the turbo models, Subaru has basically a niche market for a sports SUV with only Toyota recently adding any form of competition with its V6 RAV4.
This article focuses and deals only with Australian delivered turbo Foresters.
Resources
Oxygen sensors cannot be cleaned, that is why checking for and replacing a worn out or damaged sensor should be and important poart of every routine service.
Since lubricating engine components – reducing friction for smoother running and optimal efficiency – is only part of what engine oil must do, it needs assistance to fully protect an engine. That’s where the additives come in.
The Forester is an all-wheel drive Compact Sports Utility Vehicle (SUV) manufactured since 1997 by Subaru — currently in its third generation and now marketed as a compact crossover. Originally introduced to the Australia in 1998, the Forester shared its platform with the Impreza up to the third generation and now features a hybrid platform of the Japanese Impreza wagon and the rear platform of the Impreza sedan. The Forester was designed and built with four-wheel drive (AWD) as standard equipment.
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