Yes, you can mix 0W-20 with 5W-20 oil in a pinch, especially for a small top-off. Since both are the same viscosity (20-weight) at operating temperature, it’s a safe temporary solution to avoid running your engine low on oil. However, for a full oil change, always stick to your manufacturer’s recommendation. You’re standing in the…
In short, yes, you can mix 0W-30 and 5W-30 motor oil, but it should only be done for a small top-off in an emergency. As long as both oils are the same type (e.g., full synthetic) and meet the performance specifications required by your vehicle’s manufacturer (like API SP), mixing them is far better than…
Yes, you can safely mix 0W-30 and 5W-30 motor oil, especially for a top-off in an emergency. Since they share the same operating temperature viscosity (the “30”), they protect your engine similarly once it’s warm. The main difference is in their cold-weather performance, so mixing them is not ideal for a full oil change but…
In short, yes, you can often use 75W140 gear oil in place of 75W90, but it’s not a universal upgrade. This switch is most beneficial for vehicles under high-stress conditions like heavy towing, competitive racing, or intense off-roading, as the thicker oil provides superior protection at high temperatures. For a standard daily driver, sticking with…
The short answer is: it’s not recommended. Using 75W-90 in a differential that specifies 75W-140 can lead to inadequate protection under high heat and heavy loads, risking accelerated wear and potential damage. Always default to your vehicle manufacturer’s specifications for critical fluids. You’re halfway through a differential fluid change, drain pan underneath, and you realize…
In short, yes, you can mix 5W-40 and 0W-40 motor oil, especially for topping off your engine in an emergency. Since both are typically modern synthetic oils with the same high-temperature viscosity (the “40”), they are compatible and mixing is far better than running your engine low on oil. However, for a full oil change,…
You can mix 10W-30 and 5W-30 motor oil in an emergency, as it is always better to have a properly filled engine with mixed oil than to run it with low oil. However, this should only be a temporary solution, as the resulting mixture will have a viscosity that doesn’t perfectly match your manufacturer’s specifications,…
In short, it’s generally not a good idea to substitute 80W-90 for 75W-80, especially in modern vehicles or cold climates. While it might be acceptable in some older, heavy-duty differentials in hot weather, the thicker cold viscosity of 80W-90 can cause hard shifting, increased wear, and reduced fuel economy. Always default to your vehicle manufacturer’s…
In short, using 75W-80 gear oil instead of the manufacturer-specified 80W-90 is generally not recommended. While it may offer slightly better cold-weather performance, its lower viscosity at operating temperatures can lead to reduced gear protection, increased wear, and potential damage, especially under heavy loads like towing or off-roading. Always consult your owner’s manual first. You’re…
In a pinch, mixing 0W-30 and 0W-40 full-synthetic motor oils is generally safe for an emergency top-off, as they share the same ‘0W’ cold-start viscosity. The resulting blend will have a high-temperature viscosity between 30 and 40, but it is not a recommended long-term practice. This guide explains the nuances, risks, and best practices for…