It can be quite a task to keep Japanese imported cars in good condition when the owners have to deal with strange specifications or get very little access to the original manuals. The first and most practical step is to check the chassis codes and engine numbers, which will assist in matching the correct service parts even when local catalogs are not that helpful. At the halfway point of your quest, resorting to the JP Used cars (https://nobukojapan.com/united-kingdom) databases can help you identify compatible parts and model differences. In the absence of manuals, comparing the torque specs and fluid requirements with those of the domestic models that are equivalent usually makes it safe to fill in the gaps. Neutral resources like Nobuko Japan can also help by indicating the year of manufacture, the option packages or the part-number conversions. The combination of accurate identification with reliable reference data leads to confident and cost-effective maintenance of JDM cars by the owners.