Original sentence: In the USA they were never sold due to the cold war, but they were available in Canada (where the Niva was quite popular) however Canadians travelling in the USA in a Lada found out that some gas stations refused to sell fuel to them due to anti-Soviet sentiment
Edited sentence: In the USA they were never sold due to the cold war, but they were available in Canada (where the Niva was quite popular) however Canadians travelling in the USA in a Lada found out that some gas stations refused to sell fuel to them due to some missguided patriotism