I've had the 1.7TD (1995) for 13 years. Bought it with 71,500 miles.
I have always changed the oil regularly and she's been the best. I had to replace the clutch a couple of times and a few gear box gates, but she clocked 364,000 miles last Monday when the engine finally had a heart attack and passed away, not that you'd have known it as she didn't lose power and still made it 40 miles home. Couldn't scrap her, so got another Isuzu engine fitted :-).
If anyone needs a cheap, specialist then look up All Vauxhalls in Charlton, they did the heart transplant!
I have a 95 Cavalier 1.7 TD GLS. Best car I've had yet, has never let me down in 4 years, just passed its MoT again without fault! Best £200 I've ever spent!!!
I also own a Cav. TD GLS 95 (Isuzu). I've owned for 10 years. Bought it with 111,000 miles on the clock, and it now has 260,000.
It's had a hard life with my heavy right foot, but the motor has never missed a beat, & it still pulls strong all the way to 120 mph. Blows no smoke from the exhaust at all. Has regular oil changes.
Went on a trip to Scotland; filled the tank brim full, achieved 770 miles on 1 tank. No joke. Never went above 60 mph though.
People in Malta / Portugal go mental for these cars; possibly the best small block diesel ever. You can get some good BHP from Isuzu motors.
Yeah, that's a mean Japanese engine. Now have 200500 on the clock for an M reg 1.7 Isuzu engine.
The Cavalier turbo diesel would have to be one of the best diesel engines about, plus you can buy parts for the Cavalier for buttons, so it's very easy to transform your Cavalier TD into a GSi or SRi replica; you can buy the bits you need for next to nothing.
Your Cavalier TD is very easily tuned if you're looking a wee bit more poke, and it will still give you 50 MPG. Before tuning a Cavalier, Astra, or Vectra TD, you need to make sure it has the Isuzu engine, because the Vauxhall TD engine is not a great engine, and any tuning to it, and it's more than likely to blow up!