When did Goodyear go from white to yellow lettering?

This may be a little detailed but it is a question of accuracy. I am building an Earnhardt Lumina stock car from the "new" Revell kit. While I have several seasons to pick from I think the most accurate with the given decals would be a season prior to 1994. Now I have quite a few Slixx yellow Goodyear tire decals. But I have no white ones.

Then I was looking at some pictures of his car from 1993 and some of them show a yellow Goodyear above the tire well on the car body but yet the car is wearing tires with white lettering. Then some pics show the car with white lettering on the car and yellow lettering on the tires. Also it seems as though Goodyear added the "#1" to "Goodyear" when they adopted the yellow lettering. Yet I see some other drivers' cars from 93 with yellow lettering with no "#1" on the tire.

Also, it seems that at some point during the 1993 season Earnhardt changed the name decal above his window to his signature rather than a printing of his name.

Does anyone have more specifics as to time on the tire lettering color change. And why did Goodyear decide to do this? This is clearly something they still use to this day.

It is a little interesting topic anyway.

They switched to the yellow lettered tires because they didn't blur as much when photographed like the white letters did...
It was either '92 or '93 as I recall, will have to dig through some reference to know for sure. I think the #1 came after Hoosier was supplying some teams with tires. Again, just from memory, if you need more I'd have to dig...- Mark

They switched to the yellow lettered tires because they didn't blur as much when photographed like the white letters did...
It was either '92 or '93 as I recall, will have to dig through some reference to know for sure. I think the #1 came after Hoosier was supplying some teams with tires. Again, just from memory, if you need more I'd have to dig...- Mark
Hm, My Benetton B192 from 1992 is with white decals, the B193 from 1993 is with yellow, so somewhere then they changed, but when exactly... I don't know

In Nascar, they changed in the final race of the 1992 season. the reason is they switched from bias ply tires to radial tires, but teams could still choose to use the older tires, so thats why sometimes you would see white letters.
They dont use the #1 on the tires anymore (starting in 2005) because they are no longer the leading tire company for motorsports.
the fender decal can be white, yellow, blue, black. doesnt matter it depends on the color of the car.
Dale Earnhardt changed the signature on his car in 1993, Im not sure why, but it looked better lol!

here is his 1992 car
http://content.bolt.com/uploads/photo/6/2/3/6/5/9/623659/large/1142558769735.jpg

here is his 1993 car
http://content.bolt.com/uploads/photo/6/2/3/6/5/9/623659/large/1142558209281.jpg

In Formula One the change happened for 1993 at the same time the rear tyre width was reduced from 18" to 15". Sounds like NASCAR was the same, Goodyear being a global company it would makes sense to change it all at onece.

Thanks guys. I suppose it is ultimately up to me on choosing the tire/lettering combination. It seems as though it could go only one way though, yellow lettering on the fender with Earnhardt signature on the roof with white OR yellow tires OR white lettering on the fender and Earnhardt printed on roof with ONLY white tires. Or whatever.

I will try to post some pics or links to some of the finished model when I finish it. It is about 50% finished now.

Little more info...
If the tire letters are italicized, they are radials, if not, like shown in JT's top picture, they are bias ply.
Compare the 1st season SuperTruck tire lettering to the same year Cup cars, trucks ran bias, cars radial. Both series ran yellow.
I think the new signature coincided with the incorporation of DEI... - Mark