MY car .had car for about 2 weeks just noticed 2 different size tyres on front and rear 13 70 and 13 80 which ones are correct

I've got 165/80 13's on my truck.

In theory you should have the same on all 5 rims. What have you got on the back and spare?

From the handbook, the approved wheel/tyre combinations for hatches and estates are:

13" x 4¹/₂J ET38 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/70

- 175/60

- 175/65

14" x 5¹/₂J ET42 alloys

- 175/60

and for pickups:

13" x 5¹/₂J ET36 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/80

From the handbook, the approved wheel/tyre combinations for hatches and estates are:

13" x 4¹/₂J ET38 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/70

- 175/60

- 175/65

14" x 5¹/₂J ET42 alloys

- 175/60

and for pickups:

13" x 5¹/₂J ET36 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/80

From the handbook, the approved wheel/tyre combinations for hatches and estates are:

13" x 4¹/₂J ET38 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/70

- 175/60

- 175/65

14" x 5¹/₂J ET42 alloys

- 175/60

and for pickups:

13" x 5¹/₂J ET36 steel wheels

- 165/70

13" x 5¹/₂J ET36 alloys

- 165/80