Brand new RVers headed to Mexico, requesting advice

This can all depend on your age and physical condition - stamina - endurance. Not sure what kind of RV you might have. Roads in Mexico can be slow going. We get tired and worn out at about 200 miles - but have done 300 miles more than a few times. We prefer taking the time to see things along the way. Yucatan can be a long haul and Huatulco a really long haul.

The fuel comment above has to do with diesel - Mexican diesel isn't ULSD for the most part - though that is up for discussion as much of their fuel comes from the US. No guarantees. But that only matters to newer diesel vehicles. Many do travel in Mexico and many get away with it. We have on 06 and won't be getting a newer one until Mexico has ULSD. Maybe we will never get a newer one.

It takes us 2 days from Laredo to San Miguel de Allende. RVs go slower than cars. We have done the Yucatan but spent over a month roaming around. We have been to Huatulco by plane - we have a big motorhome and don't want to drive the roads to Huatulco - nothing calling us to go there at this point. Lots to see and do in the Yucatan but it can take 4 days to get there and 4 days back. Possible to do it faster but not by us. Most posters here and veteran Mexico travelers will say never drive at night in Mexico - speed bumps (topes) - cows - horses - goats - all can cause problems and can't be seen at night. So driving time can be limited.

The distance is over 4,000 miles, Texas to Quintana Roo to Huatulco and back to Texas. Kind of far for 9 days!

Check first to see if you can get the correct type of diesel fuel for your ERA.