• Join Premium & Save
      Join Premium & Save
    • Get Your Club gear
      Get Your Club gear
    • Savings Up to 15% Off For Members
      Savings Up to 15% Off For Members
    • Huge Range of Ford Parts
      Huge Range of Ford Parts
    • 1000's Of Fords For Sale
      1000's Of Fords For Sale
    • Share Your Car Experience
      Share Your Car Experience


@leeaustinrose

Wrong Oil Advice

6 posts in this topic

Hi guys I've gone and added about 3/4 of a litre of Shell Helix Diesel oil (10w-40) to my 1.4L Ford Focus Petrol engine! can anyone advise me whether I need to drain the engine and start again or if I'll get away with it as a one off?

Lenny likes this

Share this post


Link to post
Share on other sites
 

It's not the ideal oil for the car but I don't think it will do any real damage. The Focus should ideally run a 5w 30 semi synthetic but you can run 10w 40 for certain weather conditions. In winter though the 5w 30 would be better as it will get to the top of the engine quicker. The only real difference between a petrol 10w 40 and a diesel one is additives as far as I know.

Share this post


Link to post
Share on other sites

On your next service purchase a can of wynnes engine flush,

Pour in to your engine oil filler as described on the tin,

Run the engine at 2,000rpm for 10 minutes

Then drop out the oil,

This will flush out the system,

Eliminating any carbon or clumps caused by two grades of oil combining,

Then fill up with new oil as normal,

No hassle.

mixmasterlooney likes this

Share this post


Link to post
Share on other sites

cheaper makes of oil are now selling the same stuff for petrol and diesel engines, my understanding was diesel oil was a better oil than petrol oil, but this was before synthetic oils came out. 3/4 of a litre is a canny top up, me thinks you should check it more often and as a one off I wouldn't worry that much as the way I look at it any oil is better than no oil when push comes to shove, but as I said as a one off, as Lenny says next oil change put a flush in first and nice new filter and treat her to some nice correct oil, she will last longer.

Lenny likes this

Share this post


Link to post
Share on other sites

wouldnt worry about it, you put so little in, which will be immediately mixed/contaminated with old oil anyway, a flush at the next oil change is a good idea if only to put your own mind at ease.

Lenny likes this

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now