98-99 were the worst, espescially the 150/175's. The 200/225's were better. 00-02 received MANY upgrades and made them ALOT better. 03+ are the best FICHTS, 2003 is when BRP took over all aspects of the production. The ETEC's are essentially upgraded FICHT's, but BRP changed the name and came out with a VERY aggressive marketing team to get past the early FICHT problems that surrounded the 150/175's. The FICHT's are actually BETTER on fuel than an ETEC by close to 15% they say.