Questions tagged [safety]

Questions relating to the safe use of tools, safety procedures, use of safety equipment and other methods of avoiding harm to yourself or others.

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Why Don't Medium Duty and Heavy Duty Trucks require Airbags?

Why Don't Medium Duty and Heavy Duty Trucks require Airbags? According to GSO 42 regulation, Passenger Cars, MPV, Trucks or Buses with GVW less than 3500Kg requires an airbag, while for MDT & HDT ...
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1answer
69 views

Newly purchased tire showing signs of crazing around the rim — is this expected/normal?

I unwrapped my newly acquired motorcycle front tire (sold as new), and noticed some cracks/crazing along the rim on both sides. The tire looks brand new and perfect otherwise. Should any amount of ...
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3answers
1k views

Do you really need to replace split pins? (aka: cotter pins)

Split pins missing. Mechanic 1 told me you must do it, it is essential for safety. Mechanic 2 told me its no big deal only japanese cars have it, you don't see them on german cars and car is still ...
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1answer
427 views

Why are motocross helmets designed the way they are? [closed]

I can imagine lots and lots of reasons why a MotoGp helmet is desgined that way. Aerodynamics and multiple layers of protection being the main reason. But a motocross helmet has its front pointed. And ...
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1answer
561 views

Metalic smell when banging fender panel

I was trying to bang out dents in a fender panel from the backside. Whilst banging I smelt and inhaled a lot of metalic smelling particles go into the air and I inhaled through mouth and nose. I did ...
2
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1answer
446 views

which 3m filter for painting?

I am repainting a door using spray cans. I am planing on giong through about 6 can... 1 primer, 2 paint, and 3 clear coat. I have a 3m respirator that I plan on wearing but which filters should I ...
2
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1answer
38 views

Safe way to install infotainment box

I am installing a video interface box into my Mercedes, this enables me to add support for a reversing camera feed. I have positioned the video interface box behind the infotainment screen like so: ...
2
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1answer
777 views

Side door impact beam damage

If your car (let's just assume some unibody sedan) gets hit in the side door enough to deform the side door impact beam, does that pose a serious threat to the future safety of the car (like in ...
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1answer
196 views

Crash survival data for old cars

Where can I find a large amount of data on crashes that have happened to answer the question Which old cars (specific models and years) are you most likely to survive a crash in? Obviously you would ...
2
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1answer
40 views

How do I safely fill and use an external diesel can?

I would like to purchase an external container and fill it with diesel fuel, for use in my personal vehicle. I want to make sure that I am doing this safely. To that end I have some questions: If I ...
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2answers
104 views

Mixing marine & starting batteries with a switch

I have a truck equipped with some emergency equipment that I'd like to be able to use without running the engine the entire time, and without draining the main starting batteries. There is a 1/2/both/...
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3answers
21k views

How serious is this tear in the tire sidewall?

I accidentally hit the sidewall of the curb and it caused a small looking rip/tear. Do you think the tire is still good or should I replace it. I have a 4WD.
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2answers
3k views

Will my exhaust pipe melt nearby plastic or PVC?

I am converting a van into a tiny home and want to mount my greywater tank in the undercarriage behind the rear axle. I'm worried about radiant heat from the exhaust pipe melting a plastic water tank ...
2
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1answer
326 views

Which acceleration threshold for blinking brake light?

I would like to modify the third brake light of my car to add blinking when a strong deceleration is detected. What threshold should I set? given the basic rules of friction, the maximum possible ...
2
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1answer
114 views

Trailer Safety Checklist

I'm new to towing and I am working on a trailer safety checklist to go through before we ride. Any additions are welcome and appreciated. Check receiver - ensure it is secure to vehicle Check hitch - ...
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2answers
783 views

Should I replace the tires earlier?

I recently read from a reputable source that tyres should be replaced at 3.2mm of tread thickness, not 1.6mm as the previous dogma suggested. My tyres are all in the 2.0mm - 2.5mm range. I understand ...
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1answer
102 views

Should I replace my tire

Should I replace my tire or is it fine to drive on
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2answers
1k views

Piece missing in rubber. Do I need to replace tire?

Do I need to replace this tire? Just noticed. The black rubber part feels awfully thin.
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1answer
28 views

turning fastener left firsts prevents cross threading a wheel nut?

I was watching a video on how to prevent cross threading a nut. Guy in was saying rather than start by turning the nut right, keep turning it left until you hear a click, then go right until right. I ...
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1answer
102 views

(Why) is it dangerous to leave the engine running while refueling?

I searched the web and I searched this Stack exchange and I've only found answers that seem to apply at all times (static electricity is always possible, and the engine doesn't cool THAT much in the ...
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1answer
2k views

Is synthetic oil more harmful than conventional?

To humans, not the engine, obviously. I use conventional oil (5w30) for my truck. When changing the oil, I obviously wear gloves, but inevitably end up getting some on my hands. It never seems like a ...
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1answer
2k views

Importance of centre bore in hubcentric wheel mount design?

I'm hopeing to settle an argument here. I am of the understanding that the diameter of the centrebore is integral to safety in hubcentric wheel mount design. Does anyone have any well evidenced ...
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1answer
176 views

Small gouge in edge of tire…

Noticed this on one of my summer tires when I took it out a few weeks ago: No puncture, no air loss, no balance issues. There's a very small bump next to where I'm holding the coin. It's so subtle ...
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1answer
52 views

Safety for different years

I am considering buying the Ford S-Max, second-hand. I went to euroncap to see safety ratings, but they rate only 2 years: the 2015 model and the 2006 model. I need to make a choice between a few ...
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1answer
127 views

How to properly add engine oil?

My car is loosing engine oil and so every once in a while I need to add anywhere between a liter and two liters to it. So far, I've done it with the engine warm, and I'm only careful not to let the ...
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1answer
90 views

is a seriously corroded driveshaft and u joints on an F150 safe? dealer who sold me car says no

I think a corroded drive train this corroded is a safety issue, bought used f150 from dealer get out on highway and was scared to hell whole truck shook so bad -drove truck back later same day saying ...
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1answer
922 views

Can a rock in a tire tread cause a blow out?

A recent answer included this: Actually rocks in tire treads can be life threatening, if they gradually cut through the rubber and eventually cause a blow-out, and you don't usually get any warning ...
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0answers
42 views

Safety Recall - Dealers say “we don't have the parts for this”

So I've been consistently getting "recall" notices for my car and every time I receive one of those mails I immediately call the number on them. I am redirected to a dealer who always answers with the ...
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2answers
1k views

Curbed tyre is it safe to drive

I think I may already know the answer to my question, just want some second opinions. I curved my tyre yesterday taking a chunk of rubber out of it. Does it need replacing or is it safe to drive for ...
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0answers
70 views

What effect does exposure to the elements (hot sun & rain) have on cars and motorcycles?

Place: South India. Situation: Parking in an open space with no shade, morning to evening. Temperature: 30 to 40 degrees Celsius. I have parked my car under the hot sun for a week, and I noticed ...
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1answer
201 views

Over full oil on a road trip

I've got a 2010 toyota prius. I'm on a road trip and changed the oil right before I took off, unfortunately I was in a hurry and didn't realize I overfilled the oil. (likely 0.5-1.2quarts overfilled ) ...
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0answers
56 views

My left rear tire looks kind of flat

My left rear tire looks kind of flat but no bubble after I spun out into shoulder during rainstorm. Is it dangerous to keep driving on it?
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0answers
42 views

My car was recalling but my car is already more than 10 years old. Repair free? [duplicate]

I just found out that my car was recalling after read the news. My dealer never told that my car was recalling. My car was recalling last year. I was doing some research and found out that most ...
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2answers
87 views

Hyundai Elantra 1998 Child Restraint Anchors

Just wondering if anyone has had experience fitting child restraint anchors to a Hyundai Lantra 1998 (or similar)? I've located the holes for where the anchors should go (according to the manual) but ...
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2answers
74 views

Steering safety precautions on a Ford Van

So I got some steering issues with my E150 Ford van from 1998 with a 5.4 v8 in it. It kinda groans and creaks like a giant wooden ship from the 1600s when ya turn it. Somebody on here was tellin me I ...
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3answers
896 views

How to raise front of car safely?

i need to get under front of car for oil change and some exhaust work. Do I just put front on axle stands and what do I do about back tyres? The might roll either way right? so do I put chock ...
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1answer
39 views

How much can I load on my trailer on my 2017 Subaru Legacy?

I have a 2017 Subaru Legacy with a standard trailer hitch installed at U-Haul. I pull a 5' by 8' utility trailer bought from Tractor Supply. I would like to carry multiple bookcases in the trailer ...
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3answers
191 views

Mismatched brand tires on back, bad on high speeds?

Wouldn't post a new question if the internet wasn't full of "Yep, perfectly fine" one one side and "Nope, you're going to hit the closest tree" on the other side. Driving a FWD Volvo S40 2.4i. ...
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1answer
93 views

Is this tire damaged? (ran on flat)

Flat and after-flat pics (it was installed on the other side after flat... I think) Ran about 70 meters (76 yards) at very-very low speed with this tire completely flat, it only has 2000 miles on it,...
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2answers
38 views

Tires of the same model but different sizes - how much difference in quality and performance?

ADAC tested winter tires of size 175/65 R14 T and 205/55 R16 H this year (in English: 175/65 R14, 205/55 R16). I would like to buy a set of size 185/65 R15. Question: Does it make sense to base the ...
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1answer
494 views

All 4 tyres for Santro Xing 145/70/ R17 can be used instead of original 155/70/R17 tyre size

I have new 4 tyre size of 145/70/R17, can I use these tyres instead of 155/70/R17 original tyre size. I will replace all 4 tyres with new tyres. Is it recommended. Shall I face any technical problems ...
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1answer
146 views

What essential preparations should I take before winter driving?

Two years ago I published this blog post on being prepared for the winter, covering off: Practice Planning the route Mechanical Supplies Geek essentials Some of these might be a bit tongue in cheek, ...
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2answers
241 views

Rock in Disk Brake, Sounds Horrible

Short Back story: I bought a Honda Ridgeline Second generation (2016 - current), 11,000 miles from the dealer, with a state inspection performed on the purchase date. The next day and a maybe 35 ...
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2answers
4k views

Rear Windshield Wiper Requirements

As of this morning my rear windshield wipers stopped working. I just bought the car this year and it is still covered by my three year warranty. I called the Mini dealership and they said that they ...
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1answer
94 views

Homemade 'Car' Vehical

I am interested in saving a few grand on a car by fishing parts out of a junkyard, whipping them together, duct-taping a fancy car decal onto it to make it look safe, adding golf-ball shaped holes to ...
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1answer
47 views

Ideas to avoid sun reflections from plated surfaces while driving

It is common to find plated decorations in the interiors of cars. They are sometimes small details, but sometimes they take big, smooth, and curved surfaces, to make sure there is some part of it in ...
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4answers
12k views

Which color headlight is the safest? [closed]

Ever since I upgraded to projector headlights I have been using 5000k xenon bulbs. The bulbs I am using are mediocre eBay bulbs and I have been giving some thought to nicer Philips or Morimoto bulbs. ...
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1answer
124 views

Drive on wheel dolly?

My FWD got a clamp in the rear. Wise to dolly the wheel and drive off? Dolly both rear wheels or just the one? Is it safe on the motorway?

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