Hyundai does not recommend an engine flush during routine service

I recently had my Hyundai Tucson services with the Hyundai authorised dealer recommending an engine flush, even prior to inspecting the vehicle. An ‘engine flush’ clears the gunk out of your engine by pouring a chemical into the engine and idling. Due to the use of chemicals, it can possibly be damaging to modern car’s engines.

I was concerned due to no mentioned of an engine flush in the Hyundai Recommended Maintenance Schedules, so I contact Hyundai directly, this was their response:

I have been in contact with our technical department both locally and overseas and they have advised that Hyundai don’t recommend an [engine] flush at service.

Canon Service Manual for EOS Kiss Digital X, EOS Digital Rebel XTi, EOS 400D Digital

Here is the Service Manual for the Canon 400D, also known by the names;

  • EOS Kiss Digital X
  • EOS Digital Rebel XTi
  • EOS 400D Digital

canon-service-manual-eos-kiss-digital-x-eos-digital-rebel-xti-eos-400d-digital.pdf (20mb)

Other manuals are available here.