Having just sold the X20XEV Ecotec Astra GSi which went through 2 headgaskets in 18 months (one at 55k miles, then again at 74k), I am now the proud owner of a grown-up Zafira GSi Turbo which is fitted with the Z20LET engine as per the Astra GSi Turbo.
The cylinder heads look the same, and I've heard lots of other Ecotec owners complain of headgasket problems from around 60-70k, so I'm wondering if the LET versions suffer from the same problems.
At the mo, the car's only 2 years old, still under warranty, and has only done 23,000 miles, but given that I rack up miles at a fair old rate, I want to plan ahead, and know what's in store and when.
So my questions are:
1. Do the Z20LET engines suffer the same HG probs as the X20XEV?
2. Any other problems to watch out for?
3. What oil do people use in these engines?
Any gen would be greatly appreciated!