Hello,

I have honda accord 2004 4 cyl , 4 door. Lately I have noticed that pick up slow down so much. I just got new tire about 4 months ago and I thought I will see better pick up but its not the case. Whenever I am going uphill, I have to turn the AC off otherwise I feel like I can walk faster than my car.
I do oil change regularly in case anyone wondering that could be an issue.

Anyone have any suggestion / ideas. Any DIY before I take it repair shop.

 

My suggestion would be to go for an oil change with full synthetic , I usually go royal purple but mobil 1 is called for from some tuners, and change it every 4,ooo miles not what the maintenance minder states. Next I would go higher octane, again don't want the argument but I know this to work on older cars . Many will argue, don't follow the sheep try it and find out for yourself. My opinion, good luck.

 

Using premium fuel would be a mistake; stay with regular fuel and get the real problem fixed. Fact, fuel and an oil change will not fix your issues; there is something systemic which is wrong with either your engine or your transmission (more likely engine).

I'd start with having the codes read; if no codes come up, in spite of the fact I hate recommending throwing parts at a problem, changing the upstream O2 sensor (which can get lazy without throwing a code) can often cure acceleration and fuel economy issues.

 

How many miles are on the car?

When were the spark plugs changed?

When was the engine air filter last changed?

 

Car is driven 140K miles. Spark and filter were changed last year, I would say about 9-11K miles drive since they both got changed.

 

Yes curious as to how synthetic oil would increase the cars peformance?

 

Simple answer; it won't.