I am considering this option. I have a 2014 focus 2.0na spec is 5w20. 03 pt cruiser 2.4na spec is 5w30/10w30 95 ram 5.9 spec is 10w30 and the 98 grand Cherokee 4.0 which calls for 10w30. Now couldn't I just use 5w30 in all of them safely? I'm not worried about warranty stuff with the focus. I work where I bought it and them proving there is 5w30 and not 5w20 is next to impossible . And I bet 5w30 would work fine in it. I run conventional in all of them at 5000 intervals. I considered syn every 10k for the focus but I don't see much to gain from it I'd rather to I've it a good look over every 5000 miles. Thank you all.
one oil in 4 vehicle's
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The 5/20 spec only appeared on the Ford radar for fuel economy purposes. I remember when they retroactively recommended it for my Mark VIII for the very same reason. No thanks.
Throw PYB at all of it and profit.
Throw PYB at all of it and profit.
Nick1994
$100 site donor 2024
Go for 5w30 in them all. The Focus won't even flinch. For all the millions of people who take their cars into Jiffy Lube and similar places im sure all those 5w20 specced Focus's get 5w30 and go 200k without an oil related problem.
5w-30 would be okay. Mobil even advertises their 0w-30 as a direct replacement for 5w-30 and 10w-30.
A UOA would show the viscosity.
The only reason for questioning the oil on a warranty claim would be an oil related failure and those are usually low or no oil and oil that's just plain worn out and sludged up or junk oil sold in convenience stores for older vehicles. A little difference in viscosity is not a big deal.
A UOA would show the viscosity.
The only reason for questioning the oil on a warranty claim would be an oil related failure and those are usually low or no oil and oil that's just plain worn out and sludged up or junk oil sold in convenience stores for older vehicles. A little difference in viscosity is not a big deal.
I would use Mobil 1 HM 5w30 so it will cover everything including the needs of the Jeep. For some reason the Jeep's 4.0 are the only engines in the world that prefer a 10w30 over 5w30, the M1 HM 5w30 is a good alternative.
IMHO, YES!
The vehicles in my signature are very similar in their oil spec's as your vehicles and I use 5W30 dino in all of them successfully!
Like your vehicles, my oil spec's are in this order:
'80 Firebird V8...5W30, 10W30, 10W40, 15W40
'01 Lexus 3.0L V6...5W30 & IIRC, 10W30 & back spec'd to 5W20
'04 Nissan 2.5L 4.....5W30, 10W30 & IIRC, 10W40
'06 Mazda3.....5W20, ONLY
The vehicles in my signature are very similar in their oil spec's as your vehicles and I use 5W30 dino in all of them successfully!
Like your vehicles, my oil spec's are in this order:
'80 Firebird V8...5W30, 10W30, 10W40, 15W40
'01 Lexus 3.0L V6...5W30 & IIRC, 10W30 & back spec'd to 5W20
'04 Nissan 2.5L 4.....5W30, 10W30 & IIRC, 10W40
'06 Mazda3.....5W20, ONLY
5w-30 would treat all those vehicles well.
If you work where you bought your Focus, do you have access to Motorcraft 5w-30 at a good price? If so, that's what I'd use. It's proven itself to be a high quality oil, and if you can get it at a good price, you should go for it.
If you work where you bought your Focus, do you have access to Motorcraft 5w-30 at a good price? If so, that's what I'd use. It's proven itself to be a high quality oil, and if you can get it at a good price, you should go for it.
JHZR2
Staff member
Didn't we have this conversation before?
Personally Id not be terribly concerned with the logistics of one single oil, after all,you don't have one single filter.
I'd look at T5 10w-30 at minimum for the 4.0. Possibly m1 hm 10w-30 or -40. That would likely do fine for the ram and pt as well.
If the focus specs 20wt, Id run that. Three out of four isn't bad...
Personally Id not be terribly concerned with the logistics of one single oil, after all,you don't have one single filter.
I'd look at T5 10w-30 at minimum for the 4.0. Possibly m1 hm 10w-30 or -40. That would likely do fine for the ram and pt as well.
If the focus specs 20wt, Id run that. Three out of four isn't bad...
Meh, we all know that the only reason a 30 grade was recommended in any of the other engines was fuel economy purposes.
I'd run 20w-50 in them all.
The Focus is under warranty. You don't want to jeopardize that by running a non recommended oil. Buy quantities of 10w-30 for the other vehicles and buy a cheap 5w-20 for the Focus.
I'd run 20w-50 in them all.
The Focus is under warranty. You don't want to jeopardize that by running a non recommended oil. Buy quantities of 10w-30 for the other vehicles and buy a cheap 5w-20 for the Focus.
Re: the warranty on the Focus. You work at the dealership and should know, but it seems to me that if a dealer wanted to confirm the oil was changed at the proper interval and with the proper grade they would ask for documentation. And the documentation would show at least a product code on the receipt which would then translate into an oil maker/type/viscosity. If the manufacturer was really curious, they could invest $40 in a UOA before authorizing a $5,000 repair, which would also disclose viscosity.
Of course, some will argue that a warranty claim could only be denied if a cause/effect relationship were established. But if it were my car I'd avoid the whole issue by using what the manufacturer specifies, at least during the warranty period.
Of course, some will argue that a warranty claim could only be denied if a cause/effect relationship were established. But if it were my car I'd avoid the whole issue by using what the manufacturer specifies, at least during the warranty period.
I have a 2014 Focus with 7K that had it's FF changed at 1900 miles. I added approx. 1/2 quart or less (5w20 PYB) during the next 5K OCI. I'm not sure if this will be the nature of the beast or if it's related to being a brand new engine.
Another owner with the same 5 speed model told me that he went up to 5w30 without any issue (including no MPG drop) and used no oil (as opposed to slight usage of 5w20).
if my Focus continues to use a few ounces of 5w20 I'll give 5w30 a try.
Another owner with the same 5 speed model told me that he went up to 5w30 without any issue (including no MPG drop) and used no oil (as opposed to slight usage of 5w20).
if my Focus continues to use a few ounces of 5w20 I'll give 5w30 a try.
I see no reason why the 5W-30 wouldn't work properly in the Focus... I ran 5W-30 in my Scion tC that's rated for 0W/5W-20 and had no issues at all, since the dealership changed the oil in it before I bought it. I only switched it out early because I wanted the improved cold weather performance. This engine used to run 5W-30 in previous model years. Granted, I do prefer to run the correct grades whenever possible, but I don't think it's likely to grenade if you go a grade up.
Originally Posted By: 901Memphis
I would use Mobil 1 HM 5w30 so it will cover everything including the needs of the Jeep. For some reason the Jeep's 4.0 are the only engines in the world that prefer a 10w30 over 5w30, the M1 HM 5w30 is a good alternative.
The Buick 3800 Series II is another one of those engines that preferred 10W-30 over 5W-30. It makes stocking oil for my oil changes just that much more frustrating.
I keep thinking I should just run 5W-30 in it instead. I doubt it'll hurt anything.
I would use Mobil 1 HM 5w30 so it will cover everything including the needs of the Jeep. For some reason the Jeep's 4.0 are the only engines in the world that prefer a 10w30 over 5w30, the M1 HM 5w30 is a good alternative.
The Buick 3800 Series II is another one of those engines that preferred 10W-30 over 5W-30. It makes stocking oil for my oil changes just that much more frustrating.
My 2012 CRV specs 5W-20 oil in the USA. I go to the dealer because it's still under warranty and what do they always use? A 0W-40! Granted, I live in the tropics, but Honda has no qualms about using a grade of oil 2 steps thicker than what Honda USA specs for the same engine. Use 5W-30 with confidence.
Originally Posted By: 901Memphis
I would use Mobil 1 HM 5w30 so it will cover everything including the needs of the Jeep. For some reason the Jeep's 4.0 are the only engines in the world that prefer a 10w30 over 5w30, the M1 HM 5w30 is a good alternative.
How does an engine "prefer" a 10w-30 over a 5w-30?
I would use Mobil 1 HM 5w30 so it will cover everything including the needs of the Jeep. For some reason the Jeep's 4.0 are the only engines in the world that prefer a 10w30 over 5w30, the M1 HM 5w30 is a good alternative.
How does an engine "prefer" a 10w-30 over a 5w-30?
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