lumpy miss fire

[dellenty69]

my car is fine, but if i drive it hard or even just accelerate up to 100 in 5th, when i come to a stop i get a realy lump tick over, switch car off for 5mins, and its fine again.

no fault codes are realy showing. (apart from pressure drop etc)

james

[sharki786]

got the right type & amount of oil in there? type of car aswell

[dellenty69]

mk4 golf 1.8t AUM engine.

to be honest iv never bought oil for it, bought it back in march and it had just had a full service. i think its 5/30 that i have a spare bottle off.

could poor oil or the wrong oil cause a lumpy tick over?

regards james

[sharki786]

dont forget the engine will increase with heat when you give it some = oil goes thinner and then you hear everything. same happened with me when i used to use valvoline oil switched to mobil 1 and i cant complain.

[sharki786]

p.s cheap oil can cause that, see some people wont ask or forget to ask what brand oil was used, when they buy or view a car. as far as you know carlube oil could have been used (its SH1T!)