Question about 2004 Ford Mustang

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What weight oil do i need to use for a 3.8 v6 2004 mustang engine

Posted by Anonymous on

  • Duane Wong
    Duane Wong Jul 11, 2010

    Oil ViscosityIn addition to meeting the SH or SJ classification of the American Petroleum Institute, your oil should be of a viscosity suitable for the outside temperature in which you'll be driving. Oil must be thin enough to get between the close tolerances of the moving parts it must lubricate. Once there, it must be thick enough to separate them with a slippery oil film. If the oil is too thin it won't separate the parts, if it's too thick it can't squeeze between them in the first place either way, excess friction and wear takes place. To complicate matters, cold-morning starts require thin oil to reduce engine resistance, while high-speed driving requires thick oil, which can lubricate vital engine parts at temperatures up to 250°F (121°C). According to the Society of Automotive Engineers' viscosity classification system, an oil with a high viscosity number (e.g., 40) will be thicker than one with a lower number (e.g., l0W). The "W" in l0W indicates that the oil is desirable for use in winter driving. Using special additives, multiple-viscosity oils are available to combine easy starting at cold temperatures with engine protection at turnpike speeds. For example, 10W-40 oil will have the viscosity of l0W oil when the engine is cold and that of 40 oil when the engine is warm. The use of such oil will decrease engine resistance and improve your gas mileage during short trips in which the oil doesn't have a chance to warm up. Some of the more popular multiple-viscosity oils are 5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50, and 5W-50. Consult your owner's manual or a reputable oil dealer for the recommended viscosity range for your vehicle and the outside temperature in which it operates. Fig. 1: Typical oil grade recommendation chart--check your owners manual for specific manufacturers recommendations

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5W20

Posted on Jan 29, 2011

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Can you use 5w20 instead of 5w30 engine oil when they reccomend 5w30


Use only the oil weight on the oil cap or owners manual if the cap does not list the oil weight. Most older vehicles called for eather 10w30 or 5w30 depending on the ambient temp. In the past 10 or so years, manufacturers updated engines for better fuel efficiency by tightening tolerances in the engines, thereby needing a lighter oil weight to provide sufficient lubrication for the parts So manufacturers started requiring 5w20 oil in their engines. I work as an Auto Care Technician at Walmart, and we will NOT do an oil change for any weight other than the recommended weight by the manufacturer. If it calls for 5w20, we use 5w20, regardless of what the owner wants. This is to avoid any possible engine oil related problems. People will blame someone else if they have a warranty issue the dealer refuses to honor for whatever reason, and it would go back to the last place the vehicle had the oil changed at. So therefore at Walmart, we follow the manufacturers recommended oil weight for all oil changes.

Mar 10, 2013 | Cars & Trucks

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Car engine oil has a weight value. 5W, 10W, 25W and so on. The higher the W...


Car engine oil has a weight value. 5W, 10W, 25W and so on. The higher the W number the thicker the oil. When the oil is cold it's hard to pour, but heat it up and it will pour very easily. In the summer time you should use a higher W number because it will not take the engine long to heat up the oil. If you live in an area of extreme cold, then use a lower W number. Cold heavy weight oil is too thick and will make the oil pump work harder, which in turn causes it to be unable to supply oil to the engine and it's working components quickly enough.

Of course the lower the weight the weaker the oil. Before making a choice, call your local auto parts dealership to compare weather to your brand of car. If you own a high powered racing machine, like a Mustang GT, or a heavy weight truck, a low weight oil may not be right for your engine's needs.

on Jan 03, 2010 | Ford Escort Cars & Trucks

1 Answer

Need to remove oil pan off 1965 Ford Mustang with i6 170. How do I do it?


With out pulling the engine out you need to take the motor mouts loose rise the engine as high as you can drop the oil pan out the back you might have to take oil pump or oil pump pick up tube off

Jun 26, 2011 | 1965 Ford Mustang

2 Answers

How many quarts of oil in 5.0 mustang gt


The 5.0L engine comes with a 5 quart oil pan. I have a 95 mustang and I have a 7 quart oil pan installed on it. If there was a previous owner that has done any work to your car be aware of that. It wasn't until 96 that mustangs came stock with a 6 quart oil pan on the 4.6L engine. I would put 5 quarts in with out worry. start the engine for a bit, shut it back off and check the oil again before taking it out on the road. Do not only put 3 quarts in it and feel safe with it.

Jul 01, 2010 | 1992 Ford Mustang

1 Answer

Cant find the amount of oil or the weight to use


3 1/2 qts with filter
3 1/8 gts w/out filter
5w30 or 10w30

Feb 04, 2010 | 1999 Nissan Frontier

2 Answers

What weight oil should be used for the engine


Engine oil is 5W-30
Transmission-
Manual--75W-90
Auto --ATFQT
Power Steering- AF3
Brake Fluid-- DOT-3


PLEASE DON'T FORGET TO RATE!!!
THANK YOU!!!

Oct 07, 2009 | 2001 Toyota Echo

2 Answers

What weight oil should I use in summer for a 1995 Mustang?


I would say 10-40 manufacture recommends 30 wt. but does not protect the engine from heat.

Aug 13, 2009 | 1995 Ford Mustang

1 Answer

Fluid for a 1993 ford mustang


Transmission : Castrol MerconV ATF

Engine Oil: 5 W 30

Differential: 90 weight gear oil

Cooling system: 50/50 mix coolant/water

Brakes: High performance DOT 3

Hope this helped you and best wishes.

Jul 05, 2009 | 1984 Pontiac Firebird

1 Answer

Oil Change


Drain engine oil and replace oil filter(your local automotive store will have a book telling you what oil filter you need to buy). You've probably been using a multi-grade 10-30 or 10-40 weight oil. Or a straight 30 weight oil. Regardless, replace that oil with one grade heavier, single-weight of oil. During warm months, use 40 weight; in the winter (depending on how far the mercury dips in your part of the country) use 20 or 30 weight. Slightly thicker oil won't hurt that worn engine, and if your battery is good, it'll turn over fast.

Jan 05, 2009 | 2003 Toyota Corolla

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