As many of you know, our beloved green GC aka Castrol SLX I has a cousin with low HT/HS, SLX II.
I'm not going to try to get every exact detail of the specs correct, but SLX II has (had) a HT/HS of 2.6, iirc. It was the extended drain oil for cars equipped with the VSI variable service interval system. That system included an OC monitior and potentially some engine mods, oil pump and roller rocker arms, iirc. Some of you also know that VW came out with new oil specs, VW 504/507 that combines all the prior specs into one new one for all VW cars.
Now, the new oils are not the low HT/HS like SLX II, they are all 5w-40s. SLX II is tricky as it is a 0w-30, but it must be a thin 30.
Anyway, the bottom line is that on one continent, thin is not in anymore. Draw your own conclusions. Wear numbers can look good, but there can also be "displaced wear" when engines wear in unusual areas.
http://www.audi.co.uk/customer/servicingoption.jsp
To benefit from the new technology and Audi Variable Service Intervals, newly developed Long Life oils such as Castrol SLX OW30 Long Life 2 must be used (please refer to owners handbook). They have been specially formulated for Audi and are a new generation of ultra high-grade synthetic oils designed to withstand ageing and high loads without deterioration. Using ordinary high quality multigrade oil will not cause any engine damage but it will defeat the object of the new technology and cause a service to be needed at 10,000 miles. In addition, compared with conventional oils, Long Life oils gives exceptional levels of engine protection, are kinder to the environment and deliver fuel savings. In recent tests carried out on vehicles in Germany SLX Long Life 2 resulted in a fuel saving of 2.72%.
Depending on how you drive, the interval will be up to 19,000 miles /24 months for petrol engines, up to 22,000 miles/24 months for the V6 TDI diesel and up to 30,000 miles/24 months for 3 and 4 cylinder TDI diesel engines.
I'm not going to try to get every exact detail of the specs correct, but SLX II has (had) a HT/HS of 2.6, iirc. It was the extended drain oil for cars equipped with the VSI variable service interval system. That system included an OC monitior and potentially some engine mods, oil pump and roller rocker arms, iirc. Some of you also know that VW came out with new oil specs, VW 504/507 that combines all the prior specs into one new one for all VW cars.
Now, the new oils are not the low HT/HS like SLX II, they are all 5w-40s. SLX II is tricky as it is a 0w-30, but it must be a thin 30.
Anyway, the bottom line is that on one continent, thin is not in anymore. Draw your own conclusions. Wear numbers can look good, but there can also be "displaced wear" when engines wear in unusual areas.
http://www.audi.co.uk/customer/servicingoption.jsp
To benefit from the new technology and Audi Variable Service Intervals, newly developed Long Life oils such as Castrol SLX OW30 Long Life 2 must be used (please refer to owners handbook). They have been specially formulated for Audi and are a new generation of ultra high-grade synthetic oils designed to withstand ageing and high loads without deterioration. Using ordinary high quality multigrade oil will not cause any engine damage but it will defeat the object of the new technology and cause a service to be needed at 10,000 miles. In addition, compared with conventional oils, Long Life oils gives exceptional levels of engine protection, are kinder to the environment and deliver fuel savings. In recent tests carried out on vehicles in Germany SLX Long Life 2 resulted in a fuel saving of 2.72%.
Depending on how you drive, the interval will be up to 19,000 miles /24 months for petrol engines, up to 22,000 miles/24 months for the V6 TDI diesel and up to 30,000 miles/24 months for 3 and 4 cylinder TDI diesel engines.
