On the 90,000 miles service the majority of things include the timing belt and water pump and all the guides and tensioners idler pulleys fluid change which includes oil coolant breaks transmission rear diff on the timing belt and water pump please make sure they know what there doing the water pump surface must be 100% clean and NO sealant applied the timing must be correct as the engine is an interference engine which means you must get it right the first time there is no second chance