Q: Cold start issue.starts after few cranks after sitting idle for 15 hours.starts immediately after 10 hours.New battery & starter

asked by on November 14, 2017

Cold start issue.Starts(bit of a struggle) after few cranks after sitting idle for 15 hours.Starts immediately after 9-10 hours (return from work). Been to my mechanic thrice. Replaced with new interstate battery and also the starter since it was failing intermittently. Starter replacement has certainly helped with intermittent failures even after a long drive. Mechanic suspects that battery isn't get charged enough due to short commutes(<15mins) everyday. I do wait for the fuel pump to prime and then turn on the ignition. Also my mechanic replaced OEM recommended 5w30 oil with 20w50 synthethic oil. But i am not sure if the oil change as anything to do with this issue.

My car has 125000 miles.
My car has an automatic transmission.

Your engine has variable valve timing and uses oil pressure to work this system in the engine. It will not work correct and can cause starting issues if you are not using the correct 5w30 oil in the engine. The 5w50 is too thick to get into the passages good and can do damage to the engine if you continue to run this oil. I recommend replacing oil and filter to 5w30 and then see if symptoms improve.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Exhaust system is rusty from catalytic converter to muffler?

Hello, thank you for writing in. Rust damage to the exhaust system will only increase in severity over time. Where you live, it is likely to happen more quickly then some other geographic locations. Over time the holes will develop...

2011 chevy equinox service stabilitrak system and ABS light came on at the same time

Claimed by Jeff Engstrom

Why after replacing the clutch does the clutch pedal have proper remission that only last a few weeks before the pedal tension is

You should check to see if clutch pedal free travel is less than 1/2 inch and then check the clutch reservoir to see if you lost fluid? If you are low on fluid then you may have a leak in...

Related articles

How to Get Acura Dealership Certified
Acura car dealerships offer automotive technician jobs to mechanics who are Acura certified through the PACT program.
The Best Used Cars to Buy If You're a Fisherman
What What do anglers look for, specifically, in their vehicles? Lots of room, plenty of cargo space, and sometimes, the ability to handle rough terrain. Some fishermen also want the option of towing a boat. With that in mind, we...
How to Program the Key Fob for Your Honda or Acura
Over Over time, it has become a convenience for us to have remote controls for different functions of our vehicles. Remote keyless entry is the most common, but many vehicles also have remote engine starting. We have become so accustomed...