2007-04-17 11:31:31 · 11 answers · asked by mklee176 1 in Cars & Transportation ➔ Maintenance & Repairs
Thanks to everyone that has answered my question. I actually got the numbers wrong, the manual calls for 5w20, but, Jiffy Lube put in 10w30. Is that bad for my car?
2007-04-17 15:01:18 · update #1
That's actually better
2007-04-17 11:34:42 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Its true that it is different from your recommended oil, however, it is not true that it is a 30 weight oil until it warms up. Quite the opposite. The "winter blend" referrs to the first number, meaning its viscosity when cold is 5, not 30.
The first number is typically the weight of the oil when you first start your car in the morning. As it warms up, the second weight, 30, describes its characteristics.
Some manufacturers are switching to recommending 5W20 and 5W30 in more engines because the lower viscosity allows engine oil to flow and lubricate better when cold.
That said, don't worry about it too much. Just ask for 10W30 next time you visit the shop.
2007-04-17 11:53:40 · answer #2 · answered by Pyro 2 · 0⤊ 0⤋
You are incorrect - on page 181 and page 207 of the owner's manual, it recommends 5W-20 - this weight is recommended for most newer Fords now. So 5W-30 is incorrect, but not so bad.
5W-30 should be ok for your car. Just keep driving until your next oil change, and tell them what happened.
I would assume that Jiffy Lube and similar places are not familiar with all the requirements, nor do they care too much about them. If they don't already, they should have a database of acceptable weights and temperature ranges for each engine. They should also know by now that Ford recommends 5W-20 for most newer Fords. But some people believe 5W-30 is fine, even though it's not the recommended oil.
2007-04-17 13:01:16 · answer #3 · answered by Spee 5 · 0⤊ 0⤋
You will never notice the difference.
Both oils are multigrade formulas.
The 10W30 oil is a slightly thicker oil at cold temperatures so that it performs like a 10 weight oil.
The 5W30 oil is slightly thinner when cold. This oil would be good in the winter time, to make it easier to start and lubricate your engine.
The 30 rating means the oil lubricates like a straight 30 weight oil at the higher temperatures that you would experience in summer driving. This is accomplished by the oil mfr using special proprietary polymer additives to the base oil.
When you change your oil again in 3000 miles, they can go back to the 10W30 oil.
(Just make sure that the technician properly installed the oil pan drain plug - some of those discount shops hire techs who have trouble properly screwing drain bolts into threads, and the oil can leak out from your engine. Definitely not a good thing.)
2007-04-17 11:49:50 · answer #4 · answered by Tom-SJ 6 · 1⤊ 0⤋
It'll be fine. They recommend 10W30 if you drive in temperatures over 100F and 5W30 if you drive in temps under 0F. Either will work OK.
But, there are reasons so many people would never let Jiffy Lube near their car. You're lucky they put the drain plug back in.
2007-04-17 13:06:05 · answer #5 · answered by Nomadd 7 · 0⤊ 0⤋
Use caution here. I used to manage a Jiffy Lube. 5W30 oil (a multiviscosity oil) is a 30 weight oil until it heats up, then becomes a 5 weight oil which allows it to flow through your engine faster. However, and here is where you need to use caution, if your manual says to use 10W30, then that is what you should use. It's possible to void your warranty if you use anything else. Contact your dealer to be sure.
2007-04-17 11:40:27 · answer #6 · answered by Michael G 2 · 0⤊ 1⤋
go back to juffy lube with your manual and tell them their mentally handicapped. its not bad for the engine but you should know what the 5 means in 5w30. 5 this the weight of the oil, so the more the number, the heavier the oil. you now have a lighter oil in the engine than what is required, therefore causing a lessened friction barrier
2007-04-17 11:39:04 · answer #7 · answered by trail-appliances_sucks 1 · 0⤊ 1⤋
The oils are essentially the same at operating temperature, but the 5W30 has a slightly lower viscosity, which makes it less prone to thickening in colder climates. So you will get smoother start-ups first off. It is a broader use oil for newer vehicles.
2007-04-17 11:52:56 · answer #8 · answered by The Artist Formally Known As Vince 1 · 1⤊ 0⤋
Amazing how the 2 who worked at the Jiffy place got it wrong....
2007-04-17 12:08:23 · answer #9 · answered by Anonymous · 0⤊ 0⤋
probably wont hurt it, but you should really use what is recommended because they are engineered specifically for it
2007-04-17 11:35:21 · answer #10 · answered by Anonymous · 0⤊ 0⤋