[vince1]

I've had three 4.3's all in Astro vans.

The first was a 2 WD 89 with TBI that could go 1000kms on a 100L tank which I believe was 28MPG imp. I think it was only about 140 hp and I remember my 1.6L Subaru wagon burning about the same. Ford Aerostar vans could run circles around that van.

The next was a 90 AWD van which burned more fuel probably because of the AWD. Both the first two developed coolant leaks into the left rear cylinders. Speaking of starting in the cold though there was a time at -40 when it was neglected to be plugged in and it started.

The third I believe was an 06 vortec and it was a longer version of the van and it burned more again, maybe around 20 mpg imp, multiply by 4/5 for US.

Although I put on more than 500k kms (300k mi) on them in total I can't say that any of the 4.3's were ever a favourite engine of mine.