What does GF-5 mean on the engine oil bottle?

1 Answers
SanValentina
07/25/25 11:51am
GF-5 engine oil indicates that it is an SN-grade oil, which is the highest grade, and has received GF-5 certification. GF-5 certification is a synthetic oil certification by the American Petroleum Institute (API). Here are the evaluation standards of the American Petroleum Institute: 1. API (American Petroleum Institute) uses an engine oil quality rating standard, dividing lubricants into two categories: for gasoline engines (S) and for diesel engines (C). 2. Lubricants for gasoline engines are marked with an S followed by a letter (e.g., SE, SF, SH, SJ, SL, SM). The later the letter in the alphabet, the higher the quality of the lubricant. Currently, the highest grade, SN, is considered the top-tier engine oil.
Was this review help?
19
1
Share
More Forum Discussions

What are the models of scaffolding safety belts?

Scaffolding safety belt models include T1XB, T2XB, T3XB, T4XB, T1PH, T2PH, TPG, etc. T1PH Universal Type I Climbing Activity Belt: It is suitable for workers who need to climb high to prevent falls during climbing operations, such as working on top of chimneys, iron towers, or water towers. The user first fastens the safety belt, wears a movable climbing hook connected to the waist belt on each hand, alternately hooks the climbing hooks onto the ladder or other climbing objects, and always keeps one climbing hook attached to the ladder. In the event of a fall, the worker will be stopped. T2PH Universal Type II Climbing Activity Belt: This is a semi-open, semi-enclosed climbing safety belt. The difference from T1PH is that it has only one climbing hook, with the other being a closed safety hook. During use, the worker needs to first secure the safety hook and pulley hook midway, then attach the climbing hook, allowing the worker to pause and work midway. TPG Universal Climbing Fixed Belt: This is a climbing safety belt equipped with a self-locking hook. It is suitable for more complex work environments, such as climbing iron ladders on chimneys. A rope is fixed to the ladder in advance, which can be a synthetic fiber rope or a steel wire rope, with sufficient strength. When climbing, the worker only needs to connect the self-locking hook to the fixed rope, which serves as a limit and relative fixation, allowing the worker to climb freely upwards along the rope during operations.
17
3
Share

What is the real fuel consumption of the Touareg 3.0?

The Volkswagen Touareg is equipped with a 3.0 V6 turbocharged engine and an 8-speed automatic transmission. The fuel consumption of this vehicle is relatively high, with an average of around 12 to 14 liters per 100 kilometers. Below is an extended introduction: 1. Exterior: The Volkswagen Touareg 3.0TSI R-Line model maintains the same appearance as the current models. It comes with an R-line package and features intelligent matrix LED headlights and LED taillights with dynamic turn signals. 2. Interior: The Touareg 3.0TSI R-Line's Innovision-Cockpit digital dashboard includes a customizable 12-inch full LCD instrument panel. 3. Features: The vehicle is fitted with Vienna full-leather wrapped seats, enhancing the interior's premium feel. Additionally, it offers wireless phone charging, wireless multimedia operation, 'Volkswagen-Car-Net' connectivity services, WiFi hotspot, USB ports, 30-color LED ambient lighting, and heated/ventilated seats.
13
3
Share

Can Mr. Muscle Remove Windshield Oil Film?

Yes, it can. Mr. Muscle has a specialized glass cleaner designed for cleaning glass. Here are the relevant details: 1. Minor dirt: For slight dirt, you don't need to use car body cleaner. Simply wipe with a towel, and it will clean immediately. However, if there is oil film on the glass, it's difficult to remove with ordinary methods. In this case, you need to use a specialized glass cleaner for oil film removal, which helps prevent oil film from adhering to the glass. 2. Toothpaste cleaning: Toothpaste has strong cleaning properties. Prepare the toothpaste you use daily, find an old toothbrush, apply the toothpaste to the toothbrush, brush along the windshield, and then wipe with a wet cloth to remove the oil film.
16
5
Share

Do You Need to Press the Clutch When Correctly Decelerating and Braking in a Manual Transmission?

The specific operation method depends on how much speed needs to be reduced, and there are several scenarios: 1. When only a slight reduction in speed is needed. For example, reducing from 70km/h to 65km/h. In this case, simply press the brake without needing to press the clutch. 2. When a significant reduction in speed is required, but stopping is not necessary. For instance, if the vehicle is in 5th gear at 70km/h and needs to slow down to 10km/h. However, there are two additional points to note: 1. After reducing speed, if you need to continue moving forward, but the speed has dropped from 70km/h to 10km/h, releasing the clutch at this point will cause the vehicle to shake severely or even stall due to the mismatch between speed and gear. Therefore, after slowing down, you must shift to an appropriate gear (e.g., 2nd gear for 10km/h) before releasing the clutch to ensure smooth driving. 2. In the same example or any similar situation, another approach can be taken: shift to neutral first, continue moving, and then shift to a gear that matches the current speed.
8
3
Share

What is the minimum speed for fourth gear?

Fourth gear should not be used below 40 mph or above 60 mph. The shifting method varies depending on the vehicle's engine. The speedometer has markings - taking Jetta as an example: shift from first to second gear at 20 mph, second to third at 30 mph, third to fourth at 40 mph, and fourth to fifth at 50 mph. Below is relevant information about the importance of gear shifting: Gear shifting is the abbreviated term for gear lever operation methods. Proficiency in operation (especially for manual transmission vehicles) directly affects driving safety. Generally, gear lever operation methods refer only to the gear lever itself, while gear shifting encompasses not just the operation methods but more importantly, the entire behavioral process including speed estimation when achieving the goal (gear change).
15
5
Share

What is the tire model for the Accord sedan?

The tire model for the Accord sedan is 225/50r17. Here are some related details: 1. Body dimensions: The Accord is a mid-size 4-door 5-seater sedan with the following dimensions: length 4893mm, width 1862mm, height 1449mm, wheelbase 2830mm, and fuel tank capacity of 56l. 2. Configuration: The Accord is equipped with a 1.5T turbocharged engine and a CVT continuously variable transmission, delivering a maximum power of 143 kW at 5500 rpm and a maximum torque of 260 Nm. It features front-wheel drive, with a front MacPherson independent suspension and a rear multi-link independent suspension.
3
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.