Longer hauls between drains
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• Cummins has increased the drain intervals on the current versions of is LIO 10-litre and Super E 14-litre :ngine ranges following operator :rials of the latest models with incr lased sump capacities.
The a rnpany is still giving formal notilication of the changes to the relevz nt chassis manufacturers, but has tevealed that the intervals for typic; I haulage usage are going up to 32, /00km on the standard oil.
Cummins also says that following detail changes to its B Series, C Series and LI 0 engines specific powefoutputs are likely to rise, to a maximum of 230hp (172kIA'), 290hp (216kW) respectively.
These variants are likely to form part of Cummins' 1992 engine lineup, which is also expected to include 10 and 14-litre versions with the company's CELECT electronic control system.
U Mercedes-Benz has managed to maintain the 45.0001un oil drain intervals on its next generation of heavy truck engines.
The LEV (low emission vehicle) charge-cooled we-sixes and vee eights are designed to meet the Euro-1 emissions legislation in 1992/1993. They will replace the current engines from late spring next year.
Mercedes says that it has not needed to decrease oil change intervals despite the low fuel consumption demanded by the strict Euro-1 standards, but concedes that it might have to do so to meet the tighter Euro-2 levels in 1995/1996.
Mercedes has also resisted any form of electronic controls for the LEI; engines such as Bosch's EDC system, but it says electronics are almost inevitable for Euro-2.
To simplify servicing, the engines with encapsulation have been equipped with an upright oil filter with two filter bowls at the front of the block to allow the oil and filter to be replaced without using a pit.
o Scania has increased the service intervals on its vehicles fitted with optional automatic chassis lubrication. Intervals on long-distance trunIcing work are up from 30,000km to 45,000km with SHPD
quality oil.
To overcome any problems with propshaft sliders being manually greased less often the splines are coated in rilsan, which is said to reduce friction and remove play from the splines. A rubber seal has been fitted to keep out dirt.